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190995875840 = 21157111714249
BaseRepresentation
bin1011000111100000111…
…1011100100000000000
3200020222211102210012102
42301320033130200000
511112124421011330
6223424200245532
716541025105110
oct2617017344000
9606884383172
10190995875840
1174001213480
12310241708a8
131501aa56963
14935c315040
154e7cc30945
hex2c783dc800

190995875840 has 384 divisors, whose sum is σ = 605011680000. Its totient is φ = 56025415680.

The previous prime is 190995875827. The next prime is 190995875881. The reversal of 190995875840 is 48578599091.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13397036 + ... + 13411284.

It is an arithmetic number, because the mean of its divisors is an integer number (1575551250).

Almost surely, 2190995875840 is an apocalyptic number.

190995875840 is a gapful number since it is divisible by the number (10) 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 190995875840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302505840000).

190995875840 is an abundant number, since it is smaller than the sum of its proper divisors (414015804160).

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

190995875840 is a wasteful number, since it uses less digits than its factorization.

190995875840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14311 (or 14291 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 65.

The spelling of 190995875840 in words is "one hundred ninety billion, nine hundred ninety-five million, eight hundred seventy-five thousand, eight hundred forty".