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312103001130020 = 22579197533545019
BaseRepresentation
bin100011011110110110010010…
…0100001000000010000100100
31111221001202101202211020022222
41012331230210201000100210
5311401443421242130040
63023442050034011512
7122511461213611232
oct10675544441002044
91457052352736288
10312103001130020
119049a1596a1871
122b00779b716b98
131051c2572c2ac9
14570dc19c93952
1526137ae1d2bb5
hex11bdb24840424

312103001130020 has 24 divisors (see below), whose sum is σ = 663712711267200. Its totient is φ = 123260932091232.

The previous prime is 312103001130013. The next prime is 312103001130077. The reversal of 312103001130020 is 20031100301213.

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, 98766770930 + ... + 98766774089.

It is an arithmetic number, because the mean of its divisors is an integer number (27654696302800).

Almost surely, 2312103001130020 is an apocalyptic number.

It is an amenable number.

312103001130020 is an abundant number, since it is smaller than the sum of its proper divisors (351609710137180).

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

312103001130020 is a wasteful number, since it uses less digits than its factorization.

312103001130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197533545107 (or 197533545105 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 312103001130020 its reverse (20031100301213), we get a palindrome (332134101431233).

The spelling of 312103001130020 in words is "three hundred twelve trillion, one hundred three billion, one million, one hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 197533545019 395067090038 790134180076 987667725095 1975335450190 3950670900380 15605150056501 31210300113002 62420600226004 78025750282505 156051500565010 312103001130020