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31001034 = 236721151
BaseRepresentation
bin111011001000…
…0100111001010
32011100000102110
41312100213022
530414013114
63024243150
7524335011
oct166204712
964300373
1031001034
1116554599
12a4704b6
13656580c
14418da78
152ac5759
hex1d909ca

31001034 has 24 divisors (see below), whose sum is σ = 62995968. Its totient is φ = 10170600.

The previous prime is 31000999. The next prime is 31001039. The reversal of 31001034 is 43010013.

It is a super-2 number, since 2×310010342 = 1922128218138312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31001039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26359 + ... + 27509.

It is an arithmetic number, because the mean of its divisors is an integer number (2624832).

Almost surely, 231001034 is an apocalyptic number.

31001034 is an abundant number, since it is smaller than the sum of its proper divisors (31994934).

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

31001034 is a wasteful number, since it uses less digits than its factorization.

31001034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 31001034 is about 5567.8572179969. The cubic root of 31001034 is about 314.1415578751.

Adding to 31001034 its reverse (43010013), we get a palindrome (74011047).

The spelling of 31001034 in words is "thirty-one million, one thousand, thirty-four".

Divisors: 1 2 3 6 67 134 201 402 1151 2302 3453 4489 6906 8978 13467 26934 77117 154234 231351 462702 5166839 10333678 15500517 31001034