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153007520 = 255612257
BaseRepresentation
bin10010001111010…
…11010110100000
3101122220120212012
421013223112200
5303132220040
623103252052
73535354031
oct1107532640
9348816765
10153007520
11794068a6
12432aa028
1325912ac3
141646ca88
15d675865
hex91eb5a0

153007520 has 72 divisors (see below), whose sum is σ = 368933292. Its totient is φ = 59965440.

The previous prime is 153007511. The next prime is 153007549. The reversal of 153007520 is 25700351.

It can be written as a sum of positive squares in 6 ways, for example, as 27836176 + 125171344 = 5276^2 + 11188^2 .

It is a super-2 number, since 2×1530075202 = 46822602353100800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 595232 + ... + 595488.

Almost surely, 2153007520 is an apocalyptic number.

153007520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153007520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184466646).

153007520 is an abundant number, since it is smaller than the sum of its proper divisors (215925772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153007520 is an equidigital number, since it uses as much as digits as its factorization.

153007520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 153007520 is about 12369.6208511013. The cubic root of 153007520 is about 534.8568866337.

Adding to 153007520 its reverse (25700351), we get a palindrome (178707871).

The spelling of 153007520 in words is "one hundred fifty-three million, seven thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 61 80 122 160 244 257 305 488 514 610 976 1028 1220 1285 1952 2056 2440 2570 3721 4112 4880 5140 7442 8224 9760 10280 14884 15677 18605 20560 29768 31354 37210 41120 59536 62708 74420 78385 119072 125416 148840 156770 250832 297680 313540 501664 595360 627080 956297 1254160 1912594 2508320 3825188 4781485 7650376 9562970 15300752 19125940 30601504 38251880 76503760 153007520