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1157851027972 = 221915234881947
BaseRepresentation
bin10000110110010101010…
…011001001101000000100
311002200121121222111001101
4100312111103021220010
5122432234330343342
62243524233505444
7146436425231452
oct20662523115004
94080547874041
101157851027972
114070507a1611
12168495b72284
138525325c082
144007c7a39d2
15201b97163b7
hex10d954c9a04

1157851027972 has 12 divisors (see below), whose sum is σ = 2132883472720. Its totient is φ = 548455750056.

The previous prime is 1157851027961. The next prime is 1157851027987. The reversal of 1157851027972 is 2797201587511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7617440898 + ... + 7617441049.

Almost surely, 21157851027972 is an apocalyptic number.

It is an amenable number.

1157851027972 is a deficient number, since it is larger than the sum of its proper divisors (975032444748).

1157851027972 is a wasteful number, since it uses less digits than its factorization.

1157851027972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15234881970 (or 15234881968 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 55.

The spelling of 1157851027972 in words is "one trillion, one hundred fifty-seven billion, eight hundred fifty-one million, twenty-seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 19 38 76 15234881947 30469763894 60939527788 289462756993 578925513986 1157851027972