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30721572562052 = 2252314685264131
BaseRepresentation
bin1101111110000111011000…
…11010110110010010000100
311000202221202012202212001202
412333003230122312102010
513011320240033441202
6145201143503242032
76320363131101521
oct677035432662204
9130687665685052
1030721572562052
119874a4488a929
1235420685a9318
13141b055000ab8
14782d09768148
15384212bcb802
hex1bf0ec6b6484

30721572562052 has 12 divisors (see below), whose sum is σ = 53865548836176. Its totient is φ = 15331415751720.

The previous prime is 30721572562007. The next prime is 30721572562069. The reversal of 30721572562052 is 25026527512703.

It is a junction number, because it is equal to n+sod(n) for n = 30721572561988 and 30721572562006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7342629974 + ... + 7342634157.

It is an arithmetic number, because the mean of its divisors is an integer number (4488795736348).

Almost surely, 230721572562052 is an apocalyptic number.

It is an amenable number.

30721572562052 is a deficient number, since it is larger than the sum of its proper divisors (23143976274124).

30721572562052 is a wasteful number, since it uses less digits than its factorization.

30721572562052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14685264658 (or 14685264656 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 30721572562052 in words is "thirty trillion, seven hundred twenty-one billion, five hundred seventy-two million, five hundred sixty-two thousand, fifty-two".

Divisors: 1 2 4 523 1046 2092 14685264131 29370528262 58741056524 7680393140513 15360786281026 30721572562052