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190847982 = 231321071759
BaseRepresentation
bin10110110000000…
…01101111101110
3111022010002012210
423120001233232
5342324113412
630534311250
74505116053
oct1330015756
9438102183
10190847982
1198801a06
1253ab8526
1330701700
141b4bd02a
1511b4c83c
hexb601bee

190847982 has 48 divisors (see below), whose sum is σ = 417415680. Its totient is φ = 58140576.

The previous prime is 190847977. The next prime is 190847999. The reversal of 190847982 is 289748091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107619 + ... + 109377.

It is an arithmetic number, because the mean of its divisors is an integer number (8696160).

Almost surely, 2190847982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190847982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208707840).

190847982 is an abundant number, since it is smaller than the sum of its proper divisors (226567698).

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

190847982 is a wasteful number, since it uses less digits than its factorization.

190847982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897 (or 1884 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 190847982 is about 13814.7740480979. The cubic root of 190847982 is about 575.7436950439.

The spelling of 190847982 in words is "one hundred ninety million, eight hundred forty-seven thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 13 26 39 78 107 169 214 321 338 507 642 1014 1391 1759 2782 3518 4173 5277 8346 10554 18083 22867 36166 45734 54249 68601 108498 137202 188213 297271 376426 564639 594542 891813 1129278 1783626 2446769 4893538 7340307 14680614 31807997 63615994 95423991 190847982