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31344331001 = 971516133491
BaseRepresentation
bin11101001100010001…
…001000100011111001
32222220102212222211012
4131030101020203321
51003143122043001
622222133443305
72156512263134
oct351421104371
988812788735
1031344331001
111232506a895
1260a91a0535
132c56a52029
141734bc921b
15c36b742bb
hex74c4488f9

31344331001 has 16 divisors (see below), whose sum is σ = 31938334848. Its totient is φ = 30756672000.

The previous prime is 31344330943. The next prime is 31344331003. The reversal of 31344331001 is 10013344313.

It is a cyclic number.

It is not a de Polignac number, because 31344331001 - 210 = 31344329977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31344331003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8976866 + ... + 8980356.

It is an arithmetic number, because the mean of its divisors is an integer number (1996145928).

Almost surely, 231344331001 is an apocalyptic number.

It is an amenable number.

31344331001 is a deficient number, since it is larger than the sum of its proper divisors (594003847).

31344331001 is a wasteful number, since it uses less digits than its factorization.

31344331001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31344331001 its reverse (10013344313), we get a palindrome (41357675314).

The spelling of 31344331001 in words is "thirty-one billion, three hundred forty-four million, three hundred thirty-one thousand, one".

Divisors: 1 97 151 613 3491 14647 59461 92563 338627 527141 2139983 8978611 51132677 207578351 323137433 31344331001