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190895994 = 23318119531
BaseRepresentation
bin10110110000011…
…01011101111010
3111022012112002000
423120031131322
5342332132434
630535321430
74505406042
oct1330153572
9438175060
10190895994
1198834a93
1253b20276
133071a513
141b4d2722
1511b5bb99
hexb60d77a

190895994 has 32 divisors (see below), whose sum is σ = 426578880. Its totient is φ = 63277200.

The previous prime is 190895989. The next prime is 190896019. The reversal of 190895994 is 499598091.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 190895994.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9 + ... + 19539.

It is an arithmetic number, because the mean of its divisors is an integer number (13330590).

Almost surely, 2190895994 is an apocalyptic number.

190895994 is an abundant number, since it is smaller than the sum of its proper divisors (235682886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190895994 is a wasteful number, since it uses less digits than its factorization.

190895994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19723 (or 19717 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The square root of 190895994 is about 13816.5116436820. The cubic root of 190895994 is about 575.7919713182.

The spelling of 190895994 in words is "one hundred ninety million, eight hundred ninety-five thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 54 181 362 543 1086 1629 3258 4887 9774 19531 39062 58593 117186 175779 351558 527337 1054674 3535111 7070222 10605333 21210666 31815999 63631998 95447997 190895994