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1900496972 = 2211435031997
BaseRepresentation
bin111000101000111…
…0100100001001100
311220110010020201202
41301101310201030
512343011400342
6512330125032
765044646333
oct16121644114
94813106652
101900496972
11895865560
12450580778
13243978b2a
14140596d1a
15b1caa332
hex7147484c

1900496972 has 48 divisors (see below), whose sum is σ = 3721842432. Its totient is φ = 841673280.

The previous prime is 1900496959. The next prime is 1900496993. The reversal of 1900496972 is 2796940091.

It is a super-2 number, since 2×19004969722 = 7223777481162337568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 950678 + ... + 952674.

It is an arithmetic number, because the mean of its divisors is an integer number (77538384).

Almost surely, 21900496972 is an apocalyptic number.

It is an amenable number.

1900496972 is a deficient number, since it is larger than the sum of its proper divisors (1821345460).

1900496972 is a wasteful number, since it uses less digits than its factorization.

1900496972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558 (or 2556 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 1900496972 is about 43594.6897224880. The cubic root of 1900496972 is about 1238.6703080756.

The spelling of 1900496972 in words is "one billion, nine hundred million, four hundred ninety-six thousand, nine hundred seventy-two".

Divisors: 1 2 4 11 22 43 44 86 172 473 503 946 1006 1892 1997 2012 3994 5533 7988 11066 21629 21967 22132 43258 43934 85871 86516 87868 171742 237919 343484 475838 944581 951676 1004491 1889162 2008982 3778324 4017964 11049401 22098802 43193113 44197604 86386226 172772452 475124243 950248486 1900496972