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961720054 = 22511915777
BaseRepresentation
bin111001010100101…
…010111011110110
32111000122102220021
4321110222323312
53432200020204
6235232555354
732555325361
oct7124527366
92430572807
10961720054
11453958569
1222a0b2b5a
13124326529
1491a250d8
155966e154
hex3952aef6

961720054 has 8 divisors (see below), whose sum is σ = 1448328168. Its totient is φ = 478944000.

The previous prime is 961720043. The next prime is 961720103. The reversal of 961720054 is 450027169.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957387 + ... + 958390.

It is an arithmetic number, because the mean of its divisors is an integer number (181041021).

Almost surely, 2961720054 is an apocalyptic number.

961720054 is a deficient number, since it is larger than the sum of its proper divisors (486608114).

961720054 is a wasteful number, since it uses less digits than its factorization.

961720054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916030.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 961720054 is about 31011.6115995283. The cubic root of 961720054 is about 987.0736473649.

The spelling of 961720054 in words is "nine hundred sixty-one million, seven hundred twenty thousand, fifty-four".

Divisors: 1 2 251 502 1915777 3831554 480860027 961720054