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1253112104 = 23156639013
BaseRepresentation
bin100101010110000…
…1111100100101000
310020022221200122102
41022230033210220
510031244041404
6324202312532
743024164026
oct11254174450
93208850572
101253112104
11593392742
122ab7b8748
1316c7cc26a
14bc5d7716
157502c71e
hex4ab0f928

1253112104 has 8 divisors (see below), whose sum is σ = 2349585210. Its totient is φ = 626556048.

The previous prime is 1253112083. The next prime is 1253112173. The reversal of 1253112104 is 4012113521.

It can be written as a sum of positive squares in only one way, i.e., 1238899204 + 14212900 = 35198^2 + 3770^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78319499 + ... + 78319514.

Almost surely, 21253112104 is an apocalyptic number.

It is an amenable number.

1253112104 is a deficient number, since it is larger than the sum of its proper divisors (1096473106).

1253112104 is a wasteful number, since it uses less digits than its factorization.

1253112104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156639019 (or 156639015 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1253112104 is about 35399.3234963608. The cubic root of 1253112104 is about 1078.1105807764.

Adding to 1253112104 its reverse (4012113521), we get a palindrome (5265225625).

The spelling of 1253112104 in words is "one billion, two hundred fifty-three million, one hundred twelve thousand, one hundred four".

Divisors: 1 2 4 8 156639013 313278026 626556052 1253112104