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38938398 = 2317381749
BaseRepresentation
bin1001010010001…
…0011100011110
32201021021102220
42110202130132
534432012043
63510330210
7651654012
oct224423436
981237386
1038938398
111aa85aa4
1211059966
1380b4595
145258542
153642483
hex252271e

38938398 has 16 divisors (see below), whose sum is σ = 82458000. Its totient is φ = 12215936.

The previous prime is 38938363. The next prime is 38938409. The reversal of 38938398 is 89383983.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38938398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190773 + ... + 190976.

It is an arithmetic number, because the mean of its divisors is an integer number (5153625).

Almost surely, 238938398 is an apocalyptic number.

38938398 is an abundant number, since it is smaller than the sum of its proper divisors (43519602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38938398 is a wasteful number, since it uses less digits than its factorization.

38938398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381771.

The product of its digits is 1119744, while the sum is 51.

The square root of 38938398 is about 6240.0639419801. The cubic root of 38938398 is about 338.9424985789.

The spelling of 38938398 in words is "thirty-eight million, nine hundred thirty-eight thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 17 34 51 102 381749 763498 1145247 2290494 6489733 12979466 19469199 38938398