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30642652340 = 2256722867651
BaseRepresentation
bin11100100010011100…
…011100010010110100
32221002112120000122122
4130202130130102310
51000224004333330
622024350215112
72133232150556
oct344234342264
987075500578
1030642652340
1111aa4a84273
125b321b4498
132b74575861
1416a99354d6
15be526e5e5
hex72271c4b4

30642652340 has 24 divisors (see below), whose sum is σ = 65310014112. Its totient is φ = 12074119200.

The previous prime is 30642652333. The next prime is 30642652357. The reversal of 30642652340 is 4325624603.

It is a self number, because there is not a number n which added to its sum of digits gives 30642652340.

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, 11432486 + ... + 11435165.

It is an arithmetic number, because the mean of its divisors is an integer number (2721250588).

Almost surely, 230642652340 is an apocalyptic number.

It is an amenable number.

30642652340 is an abundant number, since it is smaller than the sum of its proper divisors (34667361772).

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

30642652340 is a wasteful number, since it uses less digits than its factorization.

30642652340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22867727 (or 22867725 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

The spelling of 30642652340 in words is "thirty billion, six hundred forty-two million, six hundred fifty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 22867651 45735302 91470604 114338255 228676510 457353020 1532132617 3064265234 6128530468 7660663085 15321326170 30642652340