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190371358856 = 23731311935159
BaseRepresentation
bin1011000101001100000…
…1000110100010001000
3200012101022022000221202
42301103001012202020
511104340031440411
6223242210523332
716516402564640
oct2612301064210
9605338260852
10190371358856
117381073a638
1230a8ab96548
1314c4b555993
1492dd3c9520
154e42ebd83b
hex2c53046888

190371358856 has 64 divisors (see below), whose sum is σ = 421244928000. Its totient is φ = 78928303680.

The previous prime is 190371358817. The next prime is 190371358897. The reversal of 190371358856 is 658853173091.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5397005 + ... + 5432163.

It is an arithmetic number, because the mean of its divisors is an integer number (6581952000).

Almost surely, 2190371358856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190371358856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210622464000).

190371358856 is an abundant number, since it is smaller than the sum of its proper divisors (230873569144).

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

190371358856 is a wasteful number, since it uses less digits than its factorization.

190371358856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38322 (or 38318 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 190371358856 in words is "one hundred ninety billion, three hundred seventy-one million, three hundred fifty-eight thousand, eight hundred fifty-six".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 217 248 434 868 1736 3119 6238 12476 21833 24952 35159 43666 70318 87332 96689 140636 174664 193378 246113 281272 386756 492226 676823 773512 984452 1089929 1353646 1968904 2179858 2707292 4359716 5414584 7629503 8719432 15259006 30518012 61036024 109660921 219321842 438643684 767626447 877287368 1535252894 3070505788 3399488551 6141011576 6798977102 13597954204 23796419857 27195908408 47592839714 95185679428 190371358856