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148388240 = 2457111317109
BaseRepresentation
bin10001101100000…
…11100110010000
3101100012220101202
420312003212100
5300441410430
622420250332
73451164530
oct1066034620
9340186352
10148388240
1176841310
12418409a8
13249863c0
14159c94c0
15d061d45
hex8d83990

148388240 has 320 divisors, whose sum is σ = 494968320. Its totient is φ = 39813120.

The previous prime is 148388237. The next prime is 148388263. The reversal of 148388240 is 42883841.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 148388194 and 148388203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1361306 + ... + 1361414.

It is an arithmetic number, because the mean of its divisors is an integer number (1546776).

Almost surely, 2148388240 is an apocalyptic number.

148388240 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 148388240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247484160).

148388240 is an abundant number, since it is smaller than the sum of its proper divisors (346580080).

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

148388240 is a wasteful number, since it uses less digits than its factorization.

148388240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 148388240 is about 12181.4711755190. The cubic root of 148388240 is about 529.4193712584.

The spelling of 148388240 in words is "one hundred forty-eight million, three hundred eighty-eight thousand, two hundred forty".