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311547542042 = 21159923641489
BaseRepresentation
bin1001000100010011010…
…11100011101000011010
31002210011021122221110102
410202021223203220122
520101022132321132
6355042321015402
731336303261562
oct4421153435032
91083137587412
10311547542042
11110143513580
1250468784562
13234c0315a19
1411116a21da2
158186357c62
hex4889ae3a1a

311547542042 has 16 divisors (see below), whose sum is σ = 510656184000. Its totient is φ = 141376098240.

The previous prime is 311547542027. The next prime is 311547542057. The reversal of 311547542042 is 240245745113.

It is an interprime number because it is at equal distance from previous prime (311547542027) and next prime (311547542057).

It is a junction number, because it is equal to n+sod(n) for n = 311547541987 and 311547542005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11807567 + ... + 11833922.

It is an arithmetic number, because the mean of its divisors is an integer number (31916011500).

Almost surely, 2311547542042 is an apocalyptic number.

311547542042 is a deficient number, since it is larger than the sum of its proper divisors (199108641958).

311547542042 is a wasteful number, since it uses less digits than its factorization.

311547542042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23642101.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 311547542042 in words is "three hundred eleven billion, five hundred forty-seven million, five hundred forty-two thousand, forty-two".

Divisors: 1 2 11 22 599 1198 6589 13178 23641489 47282978 260056379 520112758 14161251911 28322503822 155773771021 311547542042