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190981076 = 2211213127239
BaseRepresentation
bin10110110001000…
…10001111010100
3111022100211210012
423120202033110
5342342343301
630541215352
74506212066
oct1330421724
9438324705
10190981076
1198892a00
1253b61558
133074a170
141b515736
1511b76ebb
hexb6223d4

190981076 has 72 divisors (see below), whose sum is σ = 400404480. Its totient is φ = 79168320.

The previous prime is 190981073. The next prime is 190981079. The reversal of 190981076 is 670189091.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (190981073) and next prime (190981079).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190981073) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 798965 + ... + 799203.

Almost surely, 2190981076 is an apocalyptic number.

It is an amenable number.

190981076 is an abundant number, since it is smaller than the sum of its proper divisors (209423404).

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

190981076 is a wasteful number, since it uses less digits than its factorization.

190981076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 190981076 is about 13819.5902978344. The cubic root of 190981076 is about 575.8775017600.

The spelling of 190981076 in words is "one hundred ninety million, nine hundred eighty-one thousand, seventy-six".

Divisors: 1 2 4 11 13 22 26 44 52 121 127 143 239 242 254 286 478 484 508 572 956 1397 1573 1651 2629 2794 3107 3146 3302 5258 5588 6214 6292 6604 10516 12428 15367 18161 28919 30353 30734 34177 36322 57838 60706 61468 68354 72644 115676 121412 136708 199771 333883 375947 394589 399542 667766 751894 789178 799084 1335532 1503788 1578356 3672713 4340479 7345426 8680958 14690852 17361916 47745269 95490538 190981076