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1057212932 = 221739432
BaseRepresentation
bin111111000000111…
…100101000000100
32201200022222111112
4333000330220010
54131121303212
6252523424152
735125106306
oct7700745004
92650288445
101057212932
114a28507a6
12256085058
1313b04c6a9
14a05a1976
1562c33422
hex3f03ca04

1057212932 has 18 divisors (see below), whose sum is σ = 1959450318. Its totient is φ = 497385792.

The previous prime is 1057212931. The next prime is 1057212941. The reversal of 1057212932 is 2392127501.

It can be written as a sum of positive squares in only one way, i.e., 995023936 + 62188996 = 31544^2 + 7886^2 .

It is a super-2 number, since 2×10572129322 = 2235398367176073248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057212931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 266153 + ... + 270095.

It is an arithmetic number, because the mean of its divisors is an integer number (108858351).

Almost surely, 21057212932 is an apocalyptic number.

It is an amenable number.

1057212932 is a deficient number, since it is larger than the sum of its proper divisors (902237386).

1057212932 is an frugal number, since it uses more digits than its factorization.

1057212932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7907 (or 3962 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1057212932 is about 32514.8109636209. The cubic root of 1057212932 is about 1018.7184121989.

The spelling of 1057212932 in words is "one billion, fifty-seven million, two hundred twelve thousand, nine hundred thirty-two".

Divisors: 1 2 4 17 34 68 3943 7886 15772 67031 134062 268124 15547249 31094498 62188996 264303233 528606466 1057212932