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31001100132 = 2235531467081
BaseRepresentation
bin11100110111110011…
…110011111101100100
32222000112001001120210
4130313303303331210
51001442240201012
622124113055420
72145144001062
oct346763637544
988015031523
1031001100132
1112169349412
126012257570
132c008c8c42
1417013a1032
15c1697623c
hex737cf3f64

31001100132 has 24 divisors (see below), whose sum is σ = 72349133472. Its totient is φ = 10331809600.

The previous prime is 31001100061. The next prime is 31001100161. The reversal of 31001100132 is 23100110013.

It is a super-2 number, since 2×310011001322 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167169 + ... + 299912.

It is an arithmetic number, because the mean of its divisors is an integer number (3014547228).

Almost surely, 231001100132 is an apocalyptic number.

It is an amenable number.

31001100132 is an abundant number, since it is smaller than the sum of its proper divisors (41348033340).

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

31001100132 is a wasteful number, since it uses less digits than its factorization.

31001100132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472619 (or 472617 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31001100132 its reverse (23100110013), we get a palindrome (54101210145).

It can be divided in two parts, 3100110013 and 2, that multiplied together give a palindrome (6200220026).

The spelling of 31001100132 in words is "thirty-one billion, one million, one hundred thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 5531 11062 16593 22124 33186 66372 467081 934162 1401243 1868324 2802486 5604972 2583425011 5166850022 7750275033 10333700044 15500550066 31001100132