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190129379328 = 211347163733
BaseRepresentation
bin1011000100010010011…
…0000001100000000000
3200011202102222012110000
42301010212001200000
511103341110114303
6223202204240000
716510404026160
oct2610446014000
9604672865400
10190129379328
11736a7094859
1230a21b40000
1314c10390b25
1492b91da5a0
154e2bb20da3
hex2c44981800

190129379328 has 240 divisors, whose sum is σ = 649035026640. Its totient is φ = 54322348032.

The previous prime is 190129379299. The next prime is 190129379333. The reversal of 190129379328 is 823973921091.

190129379328 is a `hidden beast` number, since 190 + 129 + 3 + 7 + 9 + 328 = 666.

It is a super-2 number, since 2×1901293793282 (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1079350 + ... + 1243082.

It is an arithmetic number, because the mean of its divisors is an integer number (2704312611).

Almost surely, 2190129379328 is an apocalyptic number.

190129379328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190129379328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324517513320).

190129379328 is an abundant number, since it is smaller than the sum of its proper divisors (458905647312).

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

190129379328 is an equidigital number, since it uses as much as digits as its factorization.

190129379328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163774 (or 163745 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 190129379328 in words is "one hundred ninety billion, one hundred twenty-nine million, three hundred seventy-nine thousand, three hundred twenty-eight".