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31303331101 = 722919527967
BaseRepresentation
bin11101001001110100…
…101110110100011101
32222210120201222112101
4131021310232310131
51003102123043401
622214111005101
72155503631660
oct351164566435
988716658471
1031303331101
1112303a06a79
126097509791
132c4b3c8333
14172d5956d7
15c33276101
hex749d2ed1d

31303331101 has 8 divisors (see below), whose sum is σ = 35931461120. Its totient is φ = 26714257488.

The previous prime is 31303331057. The next prime is 31303331141. The reversal of 31303331101 is 10113330313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31303331101 - 217 = 31303200029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31303331141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9762381 + ... + 9765586.

It is an arithmetic number, because the mean of its divisors is an integer number (4491432640).

Almost surely, 231303331101 is an apocalyptic number.

It is an amenable number.

31303331101 is a deficient number, since it is larger than the sum of its proper divisors (4628130019).

31303331101 is a wasteful number, since it uses less digits than its factorization.

31303331101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19528203.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 31303331101 its reverse (10113330313), we get a palindrome (41416661414).

It can be divided in two parts, 31303 and 331101, that added together give a square (362404 = 6022).

The spelling of 31303331101 in words is "thirty-one billion, three hundred three million, three hundred thirty-one thousand, one hundred one".

Divisors: 1 7 229 1603 19527967 136695769 4471904443 31303331101