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38720294235 = 3257110872
BaseRepresentation
bin100100000011111010…
…001100110101011011
310200221111001202012200
4210003322030311123
51113244343403420
625442102141243
72540345033130
oct440372146533
9120844052180
1038720294235
111546a662177
127607421823
133860c0190c
141c34650587
1510194a4b90
hex903e8cd5b

38720294235 has 36 divisors (see below), whose sum is σ = 76709977968. Its totient is φ = 17699109408.

The previous prime is 38720294233. The next prime is 38720294287. The reversal of 38720294235 is 53249202783.

38720294235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38720294235 - 21 = 38720294233 is a prime.

It is a super-2 number, since 2×387202942352 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (38720294231) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3486862 + ... + 3497948.

Almost surely, 238720294235 is an apocalyptic number.

38720294235 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38720294235 is a deficient number, since it is larger than the sum of its proper divisors (37989683733).

38720294235 is an frugal number, since it uses more digits than its factorization.

38720294235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22192 (or 11102 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 38720294235 in words is "thirty-eight billion, seven hundred twenty million, two hundred ninety-four thousand, two hundred thirty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 11087 33261 55435 77609 99783 166305 232827 388045 498915 698481 1164135 3492405 122921569 368764707 614607845 860450983 1106294121 1843823535 2581352949 4302254915 5531470605 7744058847 12906764745 38720294235