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38679953 = 13191491051
BaseRepresentation
bin1001001110001…
…1010110010001
32200210010220212
42103203112101
534400224303
63501013505
7646526354
oct223432621
980703825
1038679953
111a919904
1210b54295
138023a60
1451cc29b
1535e0ad8
hex24e3591

38679953 has 16 divisors (see below), whose sum is σ = 44184000. Its totient is φ = 33566400.

The previous prime is 38679943. The next prime is 38679961. The reversal of 38679953 is 35997683.

It is a cyclic number.

It is not a de Polignac number, because 38679953 - 24 = 38679937 is a prime.

It is a super-2 number, since 2×386799532 = 2992277528164418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38679923) 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, 36278 + ... + 37328.

It is an arithmetic number, because the mean of its divisors is an integer number (2761500).

Almost surely, 238679953 is an apocalyptic number.

It is an amenable number.

38679953 is a deficient number, since it is larger than the sum of its proper divisors (5504047).

38679953 is a wasteful number, since it uses less digits than its factorization.

38679953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232.

The product of its digits is 1224720, while the sum is 50.

The square root of 38679953 is about 6219.3209436401. The cubic root of 38679953 is about 338.1909480918.

The spelling of 38679953 in words is "thirty-eight million, six hundred seventy-nine thousand, nine hundred fifty-three".

Divisors: 1 13 19 149 247 1051 1937 2831 13663 19969 36803 156599 259597 2035787 2975381 38679953