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190922893 = 7313492521
BaseRepresentation
bin10110110000101…
…00000010001101
3111022020212222021
423120110002031
5342334013033
630540050141
74505550340
oct1330240215
9438225867
10190922893
1198853217
1253b33951
1330729835
141b4dc457
1511b64b2d
hexb61408d

190922893 has 16 divisors (see below), whose sum is σ = 225971200. Its totient is φ = 157852800.

The previous prime is 190922891. The next prime is 190922911. The reversal of 190922893 is 398229091.

It is not a de Polignac number, because 190922893 - 21 = 190922891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190922891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74473 + ... + 76993.

It is an arithmetic number, because the mean of its divisors is an integer number (14123200).

Almost surely, 2190922893 is an apocalyptic number.

It is an amenable number.

190922893 is a deficient number, since it is larger than the sum of its proper divisors (35048307).

190922893 is a wasteful number, since it uses less digits than its factorization.

190922893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 190922893 is about 13817.4850461291. The cubic root of 190922893 is about 575.8190148415.

The spelling of 190922893 in words is "one hundred ninety million, nine hundred twenty-two thousand, eight hundred ninety-three".

Divisors: 1 7 31 217 349 2443 2521 10819 17647 75733 78151 547057 879829 6158803 27274699 190922893