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2038391390 = 25729119877
BaseRepresentation
bin111100101111111…
…0110001001011110
312021001121000022102
41321133312021132
513133312011030
6534133445102
7101341020020
oct17137661136
95231530272
102038391390
11956689692
1248a7a0792
132663c9969
14154a10010
15bde47c45
hex797f625e

2038391390 has 16 divisors (see below), whose sum is σ = 4193262432. Its totient is φ = 698877024.

The previous prime is 2038391389. The next prime is 2038391401. The reversal of 2038391390 is 931938302.

It is a super-2 number, since 2×20383913902 = 8310078917652264200, which contains 22 as substring.

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, 14559869 + ... + 14560008.

It is an arithmetic number, because the mean of its divisors is an integer number (262078902).

Almost surely, 22038391390 is an apocalyptic number.

2038391390 is an abundant number, since it is smaller than the sum of its proper divisors (2154871042).

2038391390 is a wasteful number, since it uses less digits than its factorization.

2038391390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29119891.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 2038391390 is about 45148.5480386690. The cubic root of 2038391390 is about 1267.9316965566.

The spelling of 2038391390 in words is "two billion, thirty-eight million, three hundred ninety-one thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 29119877 58239754 145599385 203839139 291198770 407678278 1019195695 2038391390