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3100120012 = 2211109646397
BaseRepresentation
bin1011100011001000…
…0001001111001100
322000001102102011201
42320302001033030
522322112320022
61231342155244
7136552404523
oct27062011714
98001372151
103100120012
111350a34060
12726282b24
133a536a852
14215a294ba
1513226e127
hexb8c813cc

3100120012 has 24 divisors (see below), whose sum is σ = 5972717520. Its totient is φ = 1396215360.

The previous prime is 3100120007. The next prime is 3100120057. The reversal of 3100120012 is 2100210013.

It is a super-2 number, since 2×31001200122 = 19221488177605760288, which contains 22 as substring.

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, 318403 + ... + 327994.

It is an arithmetic number, because the mean of its divisors is an integer number (248863230).

Almost surely, 23100120012 is an apocalyptic number.

It is an amenable number.

3100120012 is a deficient number, since it is larger than the sum of its proper divisors (2872597508).

3100120012 is a wasteful number, since it uses less digits than its factorization.

3100120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646521 (or 646519 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 3100120012 is about 55678.7213574450. The cubic root of 3100120012 is about 1458.1185516555.

Adding to 3100120012 its reverse (2100210013), we get a palindrome (5200330025).

Subtracting from 3100120012 its reverse (2100210013), we obtain a palindrome (999909999).

The spelling of 3100120012 in words is "three billion, one hundred million, one hundred twenty thousand, twelve".

Divisors: 1 2 4 11 22 44 109 218 436 1199 2398 4796 646397 1292794 2585588 7110367 14220734 28441468 70457273 140914546 281829092 775030003 1550060006 3100120012