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31300130202 = 23112268316069
BaseRepresentation
bin11101001001101000…
…100001010110011010
32222210100201100201120
4131021220201112122
51003100313131302
622213514230110
72155434500625
oct351150412632
988710640646
1031300130202
1112302120100
126096425336
132c4a847403
14172cda0dbc
15c32d429bc
hex749a2159a

31300130202 has 48 divisors (see below), whose sum is σ = 68838480480. Its totient is φ = 9480762720.

The previous prime is 31300130171. The next prime is 31300130203. The reversal of 31300130202 is 20203100313.

It is not an unprimeable number, because it can be changed into a prime (31300130203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1939824 + ... + 1955892.

It is an arithmetic number, because the mean of its divisors is an integer number (1434135010).

Almost surely, 231300130202 is an apocalyptic number.

31300130202 is an abundant number, since it is smaller than the sum of its proper divisors (37538350278).

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

31300130202 is a wasteful number, since it uses less digits than its factorization.

31300130202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18779 (or 18768 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31300130202 its reverse (20203100313), we get a palindrome (51503230515).

The spelling of 31300130202 in words is "thirty-one billion, three hundred million, one hundred thirty thousand, two hundred two".

Divisors: 1 2 3 6 11 22 33 66 121 242 363 726 2683 5366 8049 16069 16098 29513 32138 48207 59026 88539 96414 176759 177078 324643 353518 530277 649286 973929 1060554 1944349 1947858 3888698 5833047 11666094 43113127 86226254 129339381 258678762 474244397 948488794 1422733191 2845466382 5216688367 10433376734 15650065101 31300130202