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12102425020 = 225786445893
BaseRepresentation
bin10110100010101110…
…00101100110111100
31011020102211220001201
423101113011212330
5144241210100040
65320524545244
7605623625650
oct132127054674
934212756051
1012102425020
11515055a054
1224190b2224
1311ab44704a
1482b480a60
154ac753a9a
hex2d15c59bc

12102425020 has 24 divisors (see below), whose sum is σ = 29045820384. Its totient is φ = 4149402816.

The previous prime is 12102424991. The next prime is 12102425047. The reversal of 12102425020 is 2052420121.

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, 43222807 + ... + 43223086.

It is an arithmetic number, because the mean of its divisors is an integer number (1210242516).

Almost surely, 212102425020 is an apocalyptic number.

12102425020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102425020 is an abundant number, since it is smaller than the sum of its proper divisors (16943395364).

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

12102425020 is a wasteful number, since it uses less digits than its factorization.

12102425020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86445909 (or 86445907 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 12102425020 its reverse (2052420121), we get a palindrome (14154845141).

The spelling of 12102425020 in words is "twelve billion, one hundred two million, four hundred twenty-five thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 86445893 172891786 345783572 432229465 605121251 864458930 1210242502 1728917860 2420485004 3025606255 6051212510 12102425020