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207349990790 = 25191091315741
BaseRepresentation
bin1100000100011100000…
…1011100010110000110
3201211012120120220101112
43001013001130112012
511344123044201130
6235131045525022
720660216561405
oct3010701342606
9654176526345
10207349990790
117aa33734058
1234229113772
1316725ca7057
14a07030563c
1555d8874495
hex304705c586

207349990790 has 16 divisors (see below), whose sum is σ = 392873667120. Its totient is φ = 78574733280.

The previous prime is 207349990789. The next prime is 207349990819. The reversal of 207349990790 is 97099943702.

It is a super-2 number, since 2×2073499907902 (a number of 23 digits) 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, 545657681 + ... + 545658060.

It is an arithmetic number, because the mean of its divisors is an integer number (24554604195).

Almost surely, 2207349990790 is an apocalyptic number.

207349990790 is a deficient number, since it is larger than the sum of its proper divisors (185523676330).

207349990790 is a wasteful number, since it uses less digits than its factorization.

207349990790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091315767.

The product of its (nonzero) digits is 7715736, while the sum is 59.

The spelling of 207349990790 in words is "two hundred seven billion, three hundred forty-nine million, nine hundred ninety thousand, seven hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 1091315741 2182631482 5456578705 10913157410 20734999079 41469998158 103674995395 207349990790