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105031007858 = 2719394853413
BaseRepresentation
bin110000111010001010…
…1011111111001110010
3101001002210101000121002
41201310111133321302
53210100414222413
6120130043002002
710405523556620
oct1416425377162
9331083330532
10105031007858
11405a82a1837
1218432809302
139b9ac06c7a
1451252b4510
152aeac68958
hex187455fe72

105031007858 has 16 divisors (see below), whose sum is σ = 189529638720. Its totient is φ = 42644168496.

The previous prime is 105031007831. The next prime is 105031007863. The reversal of 105031007858 is 858700130501.

It is a super-2 number, since 2×1050310078582 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 197426441 + ... + 197426972.

It is an arithmetic number, because the mean of its divisors is an integer number (11845602420).

Almost surely, 2105031007858 is an apocalyptic number.

105031007858 is a deficient number, since it is larger than the sum of its proper divisors (84498630862).

105031007858 is a wasteful number, since it uses less digits than its factorization.

105031007858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394853441.

The product of its (nonzero) digits is 33600, while the sum is 38.

The spelling of 105031007858 in words is "one hundred five billion, thirty-one million, seven thousand, eight hundred fifty-eight".

Divisors: 1 2 7 14 19 38 133 266 394853413 789706826 2763973891 5527947782 7502214847 15004429694 52515503929 105031007858