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132431021000 = 2353891487989
BaseRepresentation
bin111101101010110000…
…0010000001111001000
3110122211100022220111122
41323111200100033020
54132204320133000
6140501000214412
712365523051065
oct1732540201710
9418740286448
10132431021000
115118894a1a3
12217baa6a408
13c6467320b5
1465a42c1c6c
1536a14b6085
hex1ed58103c8

132431021000 has 64 divisors (see below), whose sum is σ = 313370694000. Its totient is φ = 52377177600.

The previous prime is 132431020961. The next prime is 132431021011. The reversal of 132431021000 is 120134231.

It can be written as a sum of positive squares in 8 ways, for example, as 10240225636 + 122190795364 = 101194^2 + 349558^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 132431021000.

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, 654995 + ... + 832994.

Almost surely, 2132431021000 is an apocalyptic number.

132431021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132431021000 is an abundant number, since it is smaller than the sum of its proper divisors (180939673000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132431021000 is a wasteful number, since it uses less digits than its factorization.

132431021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488099 (or 1488085 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 132431021000 its reverse (120134231), we get a palindrome (132551155231).

The spelling of 132431021000 in words is "one hundred thirty-two billion, four hundred thirty-one million, twenty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 89 100 125 178 200 250 356 445 500 712 890 1000 1780 2225 3560 4450 8900 11125 17800 22250 44500 89000 1487989 2975978 5951956 7439945 11903912 14879890 29759780 37199725 59519560 74399450 132431021 148798900 185998625 264862042 297597800 371997250 529724084 662155105 743994500 1059448168 1324310210 1487989000 2648620420 3310775525 5297240840 6621551050 13243102100 16553877625 26486204200 33107755250 66215510500 132431021000