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137972689570 = 25233761265787
BaseRepresentation
bin1000000001111111010…
…0000010101010100010
3111012010112221211122201
42000133310002222202
54230032002031240
6143214521323414
712653043340162
oct2003764025242
9435115854581
10137972689570
1153571a93881
12228a693656a
131001a874c21
14696c2a45a2
1538c7c66d9a
hex201fd02aa2

137972689570 has 64 divisors (see below), whose sum is σ = 270516900096. Its totient is φ = 50520602880.

The previous prime is 137972689553. The next prime is 137972689573. The reversal of 137972689570 is 75986279731.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (137972689573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386217 + ... + 652003.

It is an arithmetic number, because the mean of its divisors is an integer number (4226826564).

Almost surely, 2137972689570 is an apocalyptic number.

137972689570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137972689570 is a deficient number, since it is larger than the sum of its proper divisors (132544210526).

137972689570 is a wasteful number, since it uses less digits than its factorization.

137972689570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265915.

The product of its (nonzero) digits is 40007520, while the sum is 64.

The spelling of 137972689570 in words is "one hundred thirty-seven billion, nine hundred seventy-two million, six hundred eighty-nine thousand, five hundred seventy".

Divisors: 1 2 5 10 23 37 46 61 74 115 122 185 230 305 370 610 851 1403 1702 2257 2806 4255 4514 7015 8510 11285 14030 22570 51911 103822 259555 265787 519110 531574 1328935 2657870 6113101 9834119 12226202 16213007 19668238 30565505 32426014 49170595 61131010 81065035 98341190 162130070 226184737 372899161 452369474 599881259 745798322 1130923685 1199762518 1864495805 2261847370 2999406295 3728991610 5998812590 13797268957 27594537914 68986344785 137972689570