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31003441001 = 133177523281
BaseRepresentation
bin11100110111111100…
…101111011101101001
32222000200102222122122
4130313330233131221
51001443340103001
622124235201025
72145202620551
oct346774573551
988020388578
1031003441001
111216a6a8115
126012ba6175
132c01238580
141701810161
15c16c89b1b
hex737f2f769

31003441001 has 8 divisors (see below), whose sum is σ = 33493651464. Its totient is φ = 28528277760.

The previous prime is 31003440997. The next prime is 31003441003. The reversal of 31003441001 is 10014430013.

It can be written as a sum of positive squares in 4 ways, for example, as 9486400 + 30993954601 = 3080^2 + 176051^2 .

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 31003441001 - 22 = 31003440997 is a prime.

It is a super-2 number, since 2×310034410012 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31003441003) 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, 3757520 + ... + 3765761.

It is an arithmetic number, because the mean of its divisors is an integer number (4186706433).

Almost surely, 231003441001 is an apocalyptic number.

It is an amenable number.

31003441001 is a deficient number, since it is larger than the sum of its proper divisors (2490210463).

31003441001 is a wasteful number, since it uses less digits than its factorization.

31003441001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7523611.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31003441001 its reverse (10014430013), we get a palindrome (41017871014).

The spelling of 31003441001 in words is "thirty-one billion, three million, four hundred forty-one thousand, one".

Divisors: 1 13 317 4121 7523281 97802653 2384880077 31003441001