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30679836156 = 2233284072557
BaseRepresentation
bin11100100100101010…
…010010010111111100
32221012010112011021000
4130210222102113330
51000313014224111
622032155210300
72134163206314
oct344452222774
987163464230
1030679836156
1112013a70aa2
125b42746990
132b7c194608
1416b0854444
15be8666c56
hex724a925fc

30679836156 has 24 divisors (see below), whose sum is σ = 79540316240. Its totient is φ = 10226612016.

The previous prime is 30679836023. The next prime is 30679836181. The reversal of 30679836156 is 65163897603.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142036171 + ... + 142036386.

Almost surely, 230679836156 is an apocalyptic number.

30679836156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30679836156 is an abundant number, since it is smaller than the sum of its proper divisors (48860480084).

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

30679836156 is a wasteful number, since it uses less digits than its factorization.

30679836156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284072570 (or 284072562 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 30679836156 in words is "thirty billion, six hundred seventy-nine million, eight hundred thirty-six thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 284072557 568145114 852217671 1136290228 1704435342 2556653013 3408870684 5113306026 7669959039 10226612052 15339918078 30679836156