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1087097957 = 11941310499
BaseRepresentation
bin100000011001011…
…1100110001100101
32210202120022001022
41000302330301211
54211244113312
6255512140525
735640115541
oct10062746145
92722508038
101087097957
11508702870
12264097745
131442b423a
14a4540a21
1565688172
hex40cbcc65

1087097957 has 8 divisors (see below), whose sum is σ = 1186164000. Its totient is φ = 988071760.

The previous prime is 1087097933. The next prime is 1087097959. The reversal of 1087097957 is 7597907801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1087097957 - 216 = 1087032421 is a prime.

It is a super-2 number, since 2×10870979572 = 2363563936227147698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1087097899 and 1087097908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087097959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98294 + ... + 108792.

It is an arithmetic number, because the mean of its divisors is an integer number (148270500).

Almost surely, 21087097957 is an apocalyptic number.

It is an amenable number.

1087097957 is a deficient number, since it is larger than the sum of its proper divisors (99066043).

1087097957 is a wasteful number, since it uses less digits than its factorization.

1087097957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19923.

The product of its (nonzero) digits is 1111320, while the sum is 53.

The square root of 1087097957 is about 32971.1685719509. The cubic root of 1087097957 is about 1028.2283166739.

The spelling of 1087097957 in words is "one billion, eighty-seven million, ninety-seven thousand, nine hundred fifty-seven".

Divisors: 1 11 9413 10499 103543 115489 98827087 1087097957