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31014004 = 2271997601
BaseRepresentation
bin111011001001…
…1110001110100
32011100200012211
41312103301310
530414422004
63024423204
7524420560
oct166236164
964320184
1031014004
111656330a
12a477b04
13656b6a8
1441946a0
152ac9504
hex1d93c74

31014004 has 48 divisors (see below), whose sum is σ = 66075520. Its totient is φ = 12441600.

The previous prime is 31013993. The next prime is 31014013. The reversal of 31014004 is 40041013.

It is a super-2 number, since 2×310140042 = 1923736888224032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51304 + ... + 51904.

Almost surely, 231014004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31014004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33037760).

31014004 is an abundant number, since it is smaller than the sum of its proper divisors (35061516).

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

31014004 is a wasteful number, since it uses less digits than its factorization.

31014004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 31014004 is about 5569.0218171596. The cubic root of 31014004 is about 314.1853612305.

Adding to 31014004 its reverse (40041013), we get a palindrome (71055017).

The spelling of 31014004 in words is "thirty-one million, fourteen thousand, four".

Divisors: 1 2 4 7 14 19 28 38 76 97 133 194 266 388 532 601 679 1202 1358 1843 2404 2716 3686 4207 7372 8414 11419 12901 16828 22838 25802 45676 51604 58297 79933 116594 159866 233188 319732 408079 816158 1107643 1632316 2215286 4430572 7753501 15507002 31014004