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30101688875 = 531801133711
BaseRepresentation
bin11100000010001100…
…110101001000101011
32212200211122020021202
4130002030311020223
5443122013021000
621454543354415
72113643063606
oct340214651053
985624566252
1030101688875
1111847689425
125a00bb2a0b
132ab947a52b
141657b5933d
15bb2a13dd5
hex70233522b

30101688875 has 16 divisors (see below), whose sum is σ = 37588047744. Its totient is φ = 24067800000.

The previous prime is 30101688857. The next prime is 30101688887. The reversal of 30101688875 is 57888610103.

It is a happy number.

It is not a de Polignac number, because 30101688875 - 216 = 30101623339 is a prime.

It is a super-2 number, since 2×301016888752 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158270 + ... + 291980.

It is an arithmetic number, because the mean of its divisors is an integer number (2349252984).

Almost surely, 230101688875 is an apocalyptic number.

30101688875 is a deficient number, since it is larger than the sum of its proper divisors (7486358869).

30101688875 is a wasteful number, since it uses less digits than its factorization.

30101688875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135527 (or 135517 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 30101688875 in words is "thirty billion, one hundred one million, six hundred eighty-eight thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 1801 9005 45025 133711 225125 668555 3342775 16713875 240813511 1204067555 6020337775 30101688875