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660234093 = 31912235167
BaseRepresentation
bin100111010110100…
…101111101101101
31201000100100220120
4213112211331231
52323004442333
6145303035153
722234616511
oct4726457555
91630310816
10660234093
11309759712
1216513bab9
13a6a2827c
1463986141
153ce69db3
hex275a5f6d

660234093 has 16 divisors (see below), whose sum is σ = 889061376. Its totient is φ = 435803760.

The previous prime is 660234079. The next prime is 660234103. The reversal of 660234093 is 390432066.

It is not a de Polignac number, because 660234093 - 24 = 660234077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660234023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125196 + ... + 130362.

It is an arithmetic number, because the mean of its divisors is an integer number (55566336).

Almost surely, 2660234093 is an apocalyptic number.

It is an amenable number.

660234093 is a deficient number, since it is larger than the sum of its proper divisors (228827283).

660234093 is a wasteful number, since it uses less digits than its factorization.

660234093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5584.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 660234093 is about 25695.0207822450. The cubic root of 660234093 is about 870.7616938806.

The spelling of 660234093 in words is "six hundred sixty million, two hundred thirty-four thousand, ninety-three".

Divisors: 1 3 191 223 573 669 5167 15501 42593 127779 986897 1152241 2960691 3456723 220078031 660234093