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67639053190 = 2512758790731
BaseRepresentation
bin111110111111100110…
…100000101110000110
320110120212210220201011
4332333212200232012
52102011044200230
651023431352434
74613105315542
oct767746405606
9213525726634
1067639053190
112675a533865
121113822271a
1364bc2835c7
1433b9240a22
151b5d200e2a
hexfbf9a0b86

67639053190 has 32 divisors (see below), whose sum is σ = 122919358464. Its totient is φ = 26796561120.

The previous prime is 67639053101. The next prime is 67639053197. The reversal of 67639053190 is 9135093676.

It is a super-2 number, since 2×676390531902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67639053197) 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, 700125 + ... + 790855.

It is an arithmetic number, because the mean of its divisors is an integer number (3841229952).

Almost surely, 267639053190 is an apocalyptic number.

67639053190 is a deficient number, since it is larger than the sum of its proper divisors (55280305274).

67639053190 is a wasteful number, since it uses less digits than its factorization.

67639053190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91452.

The product of its (nonzero) digits is 918540, while the sum is 49.

The spelling of 67639053190 in words is "sixty-seven billion, six hundred thirty-nine million, fifty-three thousand, one hundred ninety".

Divisors: 1 2 5 10 127 254 587 635 1174 1270 2935 5870 74549 90731 149098 181462 372745 453655 745490 907310 11522837 23045674 53259097 57614185 106518194 115228370 266295485 532590970 6763905319 13527810638 33819526595 67639053190