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190874382930 = 233572112634987
BaseRepresentation
bin1011000111000011111…
…1111111001001010010
3200020200100211022021000
42301300333333021102
511111402320223210
6223404140242430
716535021325300
oct2616077771122
9606610738230
10190874382930
1173a49682010
1230bab540416
1314ccb82936a
14934a12b270
154e72232ac0
hex2c70fff252

190874382930 has 384 divisors, whose sum is σ = 648513423360. Its totient is φ = 39503479680.

The previous prime is 190874382913. The next prime is 190874382949. The reversal of 190874382930 is 39283478091.

190874382930 is a `hidden beast` number, since 190 + 8 + 74 + 382 + 9 + 3 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 38271897 + ... + 38276883.

It is an arithmetic number, because the mean of its divisors is an integer number (1688837040).

Almost surely, 2190874382930 is an apocalyptic number.

190874382930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 190874382930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324256711680).

190874382930 is an abundant number, since it is smaller than the sum of its proper divisors (457639040430).

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

190874382930 is a wasteful number, since it uses less digits than its factorization.

190874382930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291 (or 5278 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 190874382930 in words is "one hundred ninety billion, eight hundred seventy-four million, three hundred eighty-two thousand, nine hundred thirty".