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3100031004 = 223736905131
BaseRepresentation
bin1011100011000110…
…1011100000011100
322000001020220002010
42320301223200130
522322101443004
61231340231220
7136551554160
oct27061534034
98001226063
103100031004
1113509831a4
1272623b510
133a5339195
14215a04ca0
15132252a89
hexb8c6b81c

3100031004 has 24 divisors (see below), whose sum is σ = 8266749568. Its totient is φ = 885723120.

The previous prime is 3100030991. The next prime is 3100031027. The reversal of 3100031004 is 4001300013.

It is a super-2 number, since 2×31000310042 = 19220384451522496032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18452482 + ... + 18452649.

Almost surely, 23100031004 is an apocalyptic number.

It is an amenable number.

3100031004 is an abundant number, since it is smaller than the sum of its proper divisors (5166718564).

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

3100031004 is a wasteful number, since it uses less digits than its factorization.

3100031004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36905145 (or 36905143 counting only the distinct ones).

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

The square root of 3100031004 is about 55677.9220517433. The cubic root of 3100031004 is about 1458.1045967701.

Adding to 3100031004 its reverse (4001300013), we get a palindrome (7101331017).

The spelling of 3100031004 in words is "three billion, one hundred million, thirty-one thousand, four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 36905131 73810262 110715393 147620524 221430786 258335917 442861572 516671834 775007751 1033343668 1550015502 3100031004