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192930621 = 3134946939
BaseRepresentation
bin10110111111111…
…10001100111101
3111110000220001120
423133332030331
5343342234441
631051101153
74531611642
oct1337761475
9443026046
10192930621
11999a46a4
12547417b9
1330c80640
141b8a1dc9
1511e0e966
hexb7fe33d

192930621 has 8 divisors (see below), whose sum is σ = 277028640. Its totient is φ = 118726512.

The previous prime is 192930611. The next prime is 192930659. The reversal of 192930621 is 126039291.

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

It is not a de Polignac number, because 192930621 - 214 = 192914237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192930611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2473431 + ... + 2473508.

It is an arithmetic number, because the mean of its divisors is an integer number (34628580).

Almost surely, 2192930621 is an apocalyptic number.

It is an amenable number.

192930621 is a deficient number, since it is larger than the sum of its proper divisors (84098019).

192930621 is a wasteful number, since it uses less digits than its factorization.

192930621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4946955.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 192930621 is about 13889.9467601571. The cubic root of 192930621 is about 577.8304010653.

The spelling of 192930621 in words is "one hundred ninety-two million, nine hundred thirty thousand, six hundred twenty-one".

Divisors: 1 3 13 39 4946939 14840817 64310207 192930621