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30279866130642 = 23311492521433393
BaseRepresentation
bin1101110001010000101001…
…01010100010000011010010
310222012201121221012020202010
412320220110222202003102
512432101131212140032
6144222213425403350
76243435211300152
oct670502452420322
9128181557166663
1030279866130642
11971468a0442a7
123490535a99556
1313b84c0c2149b
147697a651a762
153779aeac6ccc
hex1b8a14aa20d2

30279866130642 has 64 divisors (see below), whose sum is σ = 62957932876800. Its totient is φ = 9698272819200.

The previous prime is 30279866130601. The next prime is 30279866130667. The reversal of 30279866130642 is 24603166897203.

It is a super-2 number, since 2×302798661306422 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69650298 + ... + 70083690.

It is an arithmetic number, because the mean of its divisors is an integer number (983717701200).

Almost surely, 230279866130642 is an apocalyptic number.

30279866130642 is an abundant number, since it is smaller than the sum of its proper divisors (32678066746158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30279866130642 is a wasteful number, since it uses less digits than its factorization.

30279866130642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436099.

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 30279866130642 in words is "thirty trillion, two hundred seventy-nine billion, eight hundred sixty-six million, one hundred thirty thousand, six hundred forty-two".

Divisors: 1 2 3 6 31 62 93 149 186 298 447 894 2521 4619 5042 7563 9238 13857 15126 27714 78151 156302 234453 375629 433393 468906 751258 866786 1126887 1300179 2253774 2600358 11644499 13435183 23288998 26870366 34933497 40305549 64575557 69866994 80611098 129151114 193726671 387453342 1092583753 2001842267 2185167506 3277751259 4003684534 6005526801 6555502518 12011053602 33870096343 67740192686 101610289029 162794979197 203220578058 325589958394 488384937591 976769875182 5046644355107 10093288710214 15139933065321 30279866130642