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30663243625 = 537611394133
BaseRepresentation
bin11100100011101010…
…111111011101101001
32221010222022011120211
4130203222333131221
51000244242244000
622030403421121
72133602161510
oct344352773551
987128264524
1030663243625
1112005668863
125b390847a1
132b78905151
1416ac575677
15be6e8a7ba
hex723abf769

30663243625 has 64 divisors (see below), whose sum is σ = 44782133760. Its totient is φ = 20527776000.

The previous prime is 30663243607. The next prime is 30663243629. The reversal of 30663243625 is 52634236603.

It is not a de Polignac number, because 30663243625 - 219 = 30662719337 is a prime.

It is a super-2 number, since 2×306632436252 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30663243629) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7417059 + ... + 7421191.

It is an arithmetic number, because the mean of its divisors is an integer number (699720840).

Almost surely, 230663243625 is an apocalyptic number.

30663243625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30663243625 is a deficient number, since it is larger than the sum of its proper divisors (14118890135).

30663243625 is a wasteful number, since it uses less digits than its factorization.

30663243625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4355 (or 4345 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 40.

The spelling of 30663243625 in words is "thirty billion, six hundred sixty-three million, two hundred forty-three thousand, six hundred twenty-five".

Divisors: 1 5 7 25 35 61 125 139 175 305 427 695 875 973 1525 2135 3475 4133 4865 7625 8479 10675 17375 20665 24325 28931 42395 53375 59353 103325 121625 144655 211975 252113 296765 516625 574487 723275 1059875 1260565 1483825 1764791 2872435 3616375 4021409 6302825 7419125 8823955 14362175 20107045 31514125 35043707 44119775 71810875 100535225 175218535 220598875 245305949 502676125 876092675 1226529745 4380463375 6132648725 30663243625