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164401707 = 3537114563
BaseRepresentation
bin10011100110010…
…01001000101011
3102110100110202010
421303021020223
5314041323312
624151411003
74034251161
oct1163111053
9373313663
10164401707
1184889488
1247083a63
13280a2122
1417b97231
15e67693c
hex9cc922b

164401707 has 16 divisors (see below), whose sum is σ = 226499328. Its totient is φ = 106011360.

The previous prime is 164401691. The next prime is 164401709. The reversal of 164401707 is 707104461.

It is not a de Polignac number, because 164401707 - 24 = 164401691 is a prime.

It is a super-3 number, since 3×1644017073 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164401709) 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 15 ways as a sum of consecutive naturals, for example, 4008 + ... + 18570.

It is an arithmetic number, because the mean of its divisors is an integer number (14156208).

Almost surely, 2164401707 is an apocalyptic number.

164401707 is a deficient number, since it is larger than the sum of its proper divisors (62097621).

164401707 is a wasteful number, since it uses less digits than its factorization.

164401707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14690.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 164401707 is about 12821.9229057111. The cubic root of 164401707 is about 547.8169187460.

The spelling of 164401707 in words is "one hundred sixty-four million, four hundred one thousand, seven hundred seven".

Divisors: 1 3 53 71 159 213 3763 11289 14563 43689 771839 1033973 2315517 3101919 54800569 164401707