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190007964902 = 2721164322263
BaseRepresentation
bin1011000011110101011…
…0110111010011100110
3200011102222111201011102
42300331112313103212
511103114014334102
6223142150040102
716504401024230
oct2607526672346
9604388451142
10190007964902
11736445a7358
12309a9349032
1314bc1190182
1492a7033250
154e2113b402
hex2c3d5b74e6

190007964902 has 16 divisors (see below), whose sum is σ = 327271679232. Its totient is φ = 81046050120.

The previous prime is 190007964899. The next prime is 190007964919. The reversal of 190007964902 is 209469700091.

It is a super-2 number, since 2×1900079649022 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 32158178 + ... + 32164085.

It is an arithmetic number, because the mean of its divisors is an integer number (20454479952).

Almost surely, 2190007964902 is an apocalyptic number.

190007964902 is a deficient number, since it is larger than the sum of its proper divisors (137263714330).

190007964902 is a wasteful number, since it uses less digits than its factorization.

190007964902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64322483.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 190007964902 in words is "one hundred ninety billion, seven million, nine hundred sixty-four thousand, nine hundred two".

Divisors: 1 2 7 14 211 422 1477 2954 64322263 128644526 450255841 900511682 13571997493 27143994986 95003982451 190007964902