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31301001100 = 2252313010011
BaseRepresentation
bin11101001001101011…
…110101111110001100
32222210102100121101001
4131021223311332030
51003101024013400
622213545030044
72155445055655
oct351153657614
988712317331
1031301001100
1112302665456
126096785324
132c4aa90935
14172d14a52c
15c32e65a6a
hex749af5f8c

31301001100 has 18 divisors (see below), whose sum is σ = 67923172604. Its totient is φ = 12520400400.

The previous prime is 31301001077. The next prime is 31301001113. The reversal of 31301001100 is 110010313.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156504906 + ... + 156505105.

Almost surely, 231301001100 is an apocalyptic number.

It is an amenable number.

31301001100 is an abundant number, since it is smaller than the sum of its proper divisors (36622171504).

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

31301001100 is a wasteful number, since it uses less digits than its factorization.

31301001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313010025 (or 313010018 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 10.

Adding to 31301001100 its reverse (110010313), we get a palindrome (31411011413).

The spelling of 31301001100 in words is "thirty-one billion, three hundred one million, one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 313010011 626020022 1252040044 1565050055 3130100110 6260200220 7825250275 15650500550 31301001100