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164730655 = 5593371657
BaseRepresentation
bin10011101000110…
…01011100011111
3102110222011222101
421310121130133
5314132340110
624202425531
74040121205
oct1164313437
9373864871
10164730655
1184a93641
12472022a7
1328188a7b
1417c41075
15e6de13a
hex9d1971f

164730655 has 16 divisors (see below), whose sum is σ = 201745440. Its totient is φ = 129088512.

The previous prime is 164730653. The next prime is 164730659. The reversal of 164730655 is 556037461.

It is a cyclic number.

It is not a de Polignac number, because 164730655 - 21 = 164730653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164730653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98587 + ... + 100243.

It is an arithmetic number, because the mean of its divisors is an integer number (12609090).

Almost surely, 2164730655 is an apocalyptic number.

164730655 is a deficient number, since it is larger than the sum of its proper divisors (37014785).

164730655 is a wasteful number, since it uses less digits than its factorization.

164730655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 164730655 is about 12834.7440566612. The cubic root of 164730655 is about 548.1820472031.

The spelling of 164730655 in words is "one hundred sixty-four million, seven hundred thirty thousand, six hundred fifty-five".

Divisors: 1 5 59 295 337 1657 1685 8285 19883 97763 99415 488815 558409 2792045 32946131 164730655