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31003442301 = 3133739435449
BaseRepresentation
bin11100110111111100…
…101111110001111101
32222000200110001102210
4130313330233301331
51001443340123201
622124235211033
72145202624416
oct346774576175
988020401383
1031003442301
111216a6a9097
126012ba6a79
132c01239040
14170181080d
15c16c8a1d6
hex737f2fc7d

31003442301 has 32 divisors (see below), whose sum is σ = 45740934400. Its totient is φ = 18555277824.

The previous prime is 31003442291. The next prime is 31003442321. The reversal of 31003442301 is 10324430013.

It is not a de Polignac number, because 31003442301 - 29 = 31003441789 is a prime.

It is a super-2 number, since 2×310034423012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31003442321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5687025 + ... + 5692473.

It is an arithmetic number, because the mean of its divisors is an integer number (1429404200).

Almost surely, 231003442301 is an apocalyptic number.

It is an amenable number.

31003442301 is a deficient number, since it is larger than the sum of its proper divisors (14737492099).

31003442301 is a wasteful number, since it uses less digits than its factorization.

31003442301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9445.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31003442301 its reverse (10324430013), we get a palindrome (41327872314).

The spelling of 31003442301 in words is "thirty-one billion, three million, four hundred forty-two thousand, three hundred one".

Divisors: 1 3 13 37 39 111 481 1443 3943 5449 11829 16347 51259 70837 145891 153777 201613 212511 437673 604839 1896583 2620969 5689749 7862907 21485407 64456221 279310291 794960059 837930873 2384880177 10334480767 31003442301