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64161038 = 2971632029
BaseRepresentation
bin1111010011000…
…0010100001110
311110201201101202
43310300110032
5112411123123
610211105502
71406234264
oct364602416
9143651352
1064161038
1133243157
12195a2292
13103a5c16
148742434
155975a28
hex3d3050e

64161038 has 16 divisors (see below), whose sum is σ = 97878480. Its totient is φ = 31539456.

The previous prime is 64161037. The next prime is 64161047. The reversal of 64161038 is 83016146.

It is a self number, because there is not a number n which added to its sum of digits gives 64161038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64161037) 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, 30608 + ... + 32636.

It is an arithmetic number, because the mean of its divisors is an integer number (6117405).

Almost surely, 264161038 is an apocalyptic number.

64161038 is a deficient number, since it is larger than the sum of its proper divisors (33717442).

64161038 is a wasteful number, since it uses less digits than its factorization.

64161038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 64161038 is about 8010.0585515962. The cubic root of 64161038 is about 400.3352148324.

The spelling of 64161038 in words is "sixty-four million, one hundred sixty-one thousand, thirty-eight".

Divisors: 1 2 97 163 194 326 2029 4058 15811 31622 196813 330727 393626 661454 32080519 64161038