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31300301070 = 234551537499
BaseRepresentation
bin11101001001101001…
…001011000100001110
32222210101001001010000
4131021221023010032
51003100334113240
622213522025130
72155436112033
oct351151130416
988711031100
1031300301070
1112302227515
1260964a81a6
132c4a8a710c
14172d00738a
15c32d78430
hex749a4b10e

31300301070 has 80 divisors (see below), whose sum is σ = 84190590000. Its totient is φ = 8344014336.

The previous prime is 31300301023. The next prime is 31300301093. The reversal of 31300301070 is 7010300313.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4170181 + ... + 4177679.

It is an arithmetic number, because the mean of its divisors is an integer number (1052382375).

Almost surely, 231300301070 is an apocalyptic number.

31300301070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31300301070 is an abundant number, since it is smaller than the sum of its proper divisors (52890288930).

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

31300301070 is a wasteful number, since it uses less digits than its factorization.

31300301070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12671 (or 12662 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 18.

Adding to 31300301070 its reverse (7010300313), we get a palindrome (38310601383).

The spelling of 31300301070 in words is "thirty-one billion, three hundred million, three hundred one thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 5153 7499 10306 14998 15459 22497 25765 30918 37495 44994 46377 51530 67491 74990 77295 92754 112485 134982 139131 154590 202473 224970 231885 278262 337455 404946 417393 463770 607419 674910 695655 834786 1012365 1214838 1391310 2024730 2086965 3037095 4173930 6074190 38642347 77284694 115927041 193211735 231854082 347781123 386423470 579635205 695562246 1043343369 1159270410 1738905615 2086686738 3130030107 3477811230 5216716845 6260060214 10433433690 15650150535 31300301070