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2563053857 = 713213113217
BaseRepresentation
bin1001100011000101…
…0001100100100001
320121121211121220122
42120301101210201
520222120210412
61102155050025
7120341412140
oct23061214441
96547747818
102563053857
1110a5860331
125b6440915
1331b008420
141a4585757
15100033572
hex98c51921

2563053857 has 16 divisors (see below), whose sum is σ = 3156246912. Its totient is φ = 2026805760.

The previous prime is 2563053853. The next prime is 2563053859. The reversal of 2563053857 is 7583503652.

It is not a de Polignac number, because 2563053857 - 22 = 2563053853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2563053851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187313 + ... + 200529.

It is an arithmetic number, because the mean of its divisors is an integer number (197265432).

Almost surely, 22563053857 is an apocalyptic number.

It is an amenable number.

2563053857 is a deficient number, since it is larger than the sum of its proper divisors (593193055).

2563053857 is a wasteful number, since it uses less digits than its factorization.

2563053857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15368.

The product of its (nonzero) digits is 756000, while the sum is 44.

The square root of 2563053857 is about 50626.6121422321. The cubic root of 2563053857 is about 1368.5245018119.

The spelling of 2563053857 in words is "two billion, five hundred sixty-three million, fifty-three thousand, eight hundred fifty-seven".

Divisors: 1 7 13 91 2131 13217 14917 27703 92519 171821 193921 1202747 28165427 197157989 366150551 2563053857