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3125031998 = 211647219547
BaseRepresentation
bin1011101001000100…
…0011010000111110
322001210022001222212
42322101003100332
522400002010443
61234032140422
7140304222314
oct27221032076
98053261885
103125031998
111363aa9880
12732697712
133aa58097a
142190720b4
15134540618
hexba44343e

3125031998 has 16 divisors (see below), whose sum is σ = 5121615744. Its totient is φ = 1418267160.

The previous prime is 3125031997. The next prime is 3125032003. The reversal of 3125031998 is 8991305213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125031997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95540 + ... + 124007.

It is an arithmetic number, because the mean of its divisors is an integer number (320100984).

Almost surely, 23125031998 is an apocalyptic number.

3125031998 is a deficient number, since it is larger than the sum of its proper divisors (1996583746).

3125031998 is a wasteful number, since it uses less digits than its factorization.

3125031998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220207.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 3125031998 is about 55901.9856355747. The cubic root of 3125031998 is about 1462.0138591011.

The spelling of 3125031998 in words is "three billion, one hundred twenty-five million, thirty-one thousand, nine hundred ninety-eight".

Divisors: 1 2 11 22 647 1294 7117 14234 219547 439094 2415017 4830034 142046909 284093818 1562515999 3125031998