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31126611153 = 3112513757891
BaseRepresentation
bin11100111111010010…
…100110010011010001
32222100021012200100010
4130333102212103101
51002221403024103
622144355145133
72151226554321
oct347722462321
988307180303
1031126611153
1112223184730
1260482a51a9
132c20902411
141713d13281
15c229b9903
hex73f4a64d1

31126611153 has 16 divisors (see below), whose sum is σ = 45455461632. Its totient is φ = 18789450000.

The previous prime is 31126611133. The next prime is 31126611163. The reversal of 31126611153 is 35111662113.

It is not a de Polignac number, because 31126611153 - 214 = 31126594769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31126611153.

It is not an unprimeable number, because it can be changed into a prime (31126611133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1870663 + ... + 1887228.

It is an arithmetic number, because the mean of its divisors is an integer number (2840966352).

Almost surely, 231126611153 is an apocalyptic number.

31126611153 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31126611153 is a deficient number, since it is larger than the sum of its proper divisors (14328850479).

31126611153 is a wasteful number, since it uses less digits than its factorization.

31126611153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758156.

The product of its digits is 3240, while the sum is 30.

The spelling of 31126611153 in words is "thirty-one billion, one hundred twenty-six million, six hundred eleven thousand, one hundred fifty-three".

Divisors: 1 3 11 33 251 753 2761 8283 3757891 11273673 41336801 124010403 943230641 2829691923 10375537051 31126611153