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131001032312 = 23311207343753
BaseRepresentation
bin111101000000001000…
…1010001111001111000
3110112010200112221210122
41322000101101321320
54121242231013222
6140103034432412
712315220254623
oct1720021217170
9415120487718
10131001032312
1150614738567
122147bb92708
13c4793b3847
1464aa404dba
15361ab9aa42
hex1e80451e78

131001032312 has 32 divisors (see below), whose sum is σ = 253577182080. Its totient is φ = 63380897280.

The previous prime is 131001032209. The next prime is 131001032341. The reversal of 131001032312 is 213230100131.

It is a super-2 number, since 2×1310010323122 (a number of 23 digits) contains 22 as substring.

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, 2972228 + ... + 3015980.

It is an arithmetic number, because the mean of its divisors is an integer number (7924286940).

Almost surely, 2131001032312 is an apocalyptic number.

It is an amenable number.

131001032312 is a deficient number, since it is larger than the sum of its proper divisors (122576149768).

131001032312 is a wasteful number, since it uses less digits than its factorization.

131001032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55863 (or 55859 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131001032312 its reverse (213230100131), we get a palindrome (344231132443).

The spelling of 131001032312 in words is "one hundred thirty-one billion, one million, thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 31 62 124 248 12073 24146 43753 48292 87506 96584 175012 350024 374263 748526 1356343 1497052 2712686 2994104 5425372 10850744 528229969 1056459938 2112919876 4225839752 16375129039 32750258078 65500516156 131001032312