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190412591020 = 2259520629551
BaseRepresentation
bin1011000101010101111…
…0011000111110101100
3200012111011212211211221
42301111132120332230
511104431110403040
6223250242353124
716520413214221
oct2612536307654
9605434784757
10190412591020
1173831a41a03
1230aa095b7a4
1314c56c61302
149304a7d948
154e4691574a
hex2c55798fac

190412591020 has 12 divisors (see below), whose sum is σ = 399866441184. Its totient is φ = 76165036400.

The previous prime is 190412591011. The next prime is 190412591021. The reversal of 190412591020 is 20195214091.

It is not an unprimeable number, because it can be changed into a prime (190412591021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4760314756 + ... + 4760314795.

It is an arithmetic number, because the mean of its divisors is an integer number (33322203432).

Almost surely, 2190412591020 is an apocalyptic number.

190412591020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190412591020 is an abundant number, since it is smaller than the sum of its proper divisors (209453850164).

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

190412591020 is a wasteful number, since it uses less digits than its factorization.

190412591020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520629560 (or 9520629558 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 190412591020 in words is "one hundred ninety billion, four hundred twelve million, five hundred ninety-one thousand, twenty".

Divisors: 1 2 4 5 10 20 9520629551 19041259102 38082518204 47603147755 95206295510 190412591020