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31300212130 = 2511435921901
BaseRepresentation
bin11101001001101000…
…110101010110100010
32222210100212112002221
4131021220311112202
51003100323242010
622213520101254
72155435261525
oct351150652642
988710775087
1031300212130
1112302176710
12609646482a
132c4a8757a5
14172cdc2bbc
15c32d5bdda
hex749a355a2

31300212130 has 96 divisors (see below), whose sum is σ = 64009268928. Its totient is φ = 10923024000.

The previous prime is 31300212113. The next prime is 31300212137. The reversal of 31300212130 is 3121200313.

It is not an unprimeable number, because it can be changed into a prime (31300212137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16464180 + ... + 16466080.

It is an arithmetic number, because the mean of its divisors is an integer number (666763218).

Almost surely, 231300212130 is an apocalyptic number.

31300212130 is an abundant number, since it is smaller than the sum of its proper divisors (32709056798).

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

31300212130 is a wasteful number, since it uses less digits than its factorization.

31300212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31300212130 its reverse (3121200313), we get a palindrome (34421412443).

The spelling of 31300212130 in words is "thirty-one billion, three hundred million, two hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 43 55 59 86 110 118 215 295 430 473 590 649 946 1298 1901 2365 2537 3245 3481 3802 4730 5074 6490 6962 9505 12685 17405 19010 20911 25370 27907 34810 38291 41822 55814 76582 81743 104555 112159 139535 149683 163486 191455 209110 224318 279070 299366 382910 408715 560795 748415 817430 899173 1121590 1233749 1496830 1646513 1798346 2467498 3293026 4495865 4822837 6168745 6617381 8232565 8991730 9645674 12337490 13234762 16465130 24114185 33086905 48228370 53051207 66173810 72791191 106102414 145582382 265256035 284547383 363955955 530512070 569094766 727911910 1422736915 2845473830 3130021213 6260042426 15650106065 31300212130