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30719733409 = 2311681114343
BaseRepresentation
bin11100100111000010…
…011110111010100001
32221021220121011000001
4130213002132322201
51000403222432114
622040142300001
72135156265661
oct344702367241
987256534001
1030719733409
1112034541432
125b53b87601
132b87523461
1416b5c7c1a1
15bebde8374
hex72709eea1

30719733409 has 8 divisors (see below), whose sum is σ = 32058398592. Its totient is φ = 29381320320.

The previous prime is 30719733301. The next prime is 30719733419. The reversal of 30719733409 is 90433791703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30719733409 - 223 = 30711344801 is a prime.

It is a super-2 number, since 2×307197334092 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30719733419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211492 + ... + 325834.

It is an arithmetic number, because the mean of its divisors is an integer number (4007299824).

Almost surely, 230719733409 is an apocalyptic number.

It is an amenable number.

30719733409 is a deficient number, since it is larger than the sum of its proper divisors (1338665183).

30719733409 is a wasteful number, since it uses less digits than its factorization.

30719733409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126047.

The product of its (nonzero) digits is 428652, while the sum is 46.

The spelling of 30719733409 in words is "thirty billion, seven hundred nineteen million, seven hundred thirty-three thousand, four hundred nine".

Divisors: 1 23 11681 114343 268663 2629889 1335640583 30719733409