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2031131132 = 223747291997
BaseRepresentation
bin111100100010000…
…1001100111111100
312020112221011002222
41321010021213330
513124432144012
6533314104512
7101222221052
oct17104114774
95215834088
102031131132
1195257a978
1248827b138
13264a57154
14153a801d2
15bd4b1972
hex791099fc

2031131132 has 24 divisors (see below), whose sum is σ = 3728230464. Its totient is φ = 967090752.

The previous prime is 2031131077. The next prime is 2031131143. The reversal of 2031131132 is 2311311302.

It is a self number, because there is not a number n which added to its sum of digits gives 2031131132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139043 + ... + 152954.

It is an arithmetic number, because the mean of its divisors is an integer number (155342936).

Almost surely, 22031131132 is an apocalyptic number.

It is an amenable number.

2031131132 is a deficient number, since it is larger than the sum of its proper divisors (1697099332).

2031131132 is a wasteful number, since it uses less digits than its factorization.

2031131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292085 (or 292083 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2031131132 is about 45068.0722019480. The cubic root of 2031131132 is about 1266.4245502457.

Adding to 2031131132 its reverse (2311311302), we get a palindrome (4342442434).

The spelling of 2031131132 in words is "two billion, thirty-one million, one hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 37 47 74 94 148 188 1739 3478 6956 291997 583994 1167988 10803889 13723859 21607778 27447718 43215556 54895436 507782783 1015565566 2031131132