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1252513930 = 251733122259
BaseRepresentation
bin100101010100111…
…1101100010001010
310020021211022002211
41022221331202022
510031120421210
6324141415334
743016123053
oct11251754212
93207738084
101252513930
11593014288
122ab56a54a
1316c64cc05
14bc4bd72a
1574e6038a
hex4aa7d88a

1252513930 has 32 divisors (see below), whose sum is σ = 2394463680. Its totient is φ = 470088960.

The previous prime is 1252513903. The next prime is 1252513943. The reversal of 1252513930 is 393152521.

It is a super-2 number, since 2×12525139302 = 3137582289688089800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1252513892 and 1252513901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45141 + ... + 67399.

It is an arithmetic number, because the mean of its divisors is an integer number (74826990).

Almost surely, 21252513930 is an apocalyptic number.

1252513930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252513930 is a deficient number, since it is larger than the sum of its proper divisors (1141949750).

1252513930 is a wasteful number, since it uses less digits than its factorization.

1252513930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22614.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 1252513930 is about 35390.8735410699. The cubic root of 1252513930 is about 1077.9390078427.

The spelling of 1252513930 in words is "one billion, two hundred fifty-two million, five hundred thirteen thousand, nine hundred thirty".