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3102390040 = 23579981769
BaseRepresentation
bin1011100011101010…
…1011011100011000
322000012200202001211
42320322223130120
522323202440130
61231502552504
7136610610631
oct27072533430
98005622054
103102390040
111352244612
12726b98734
133a5983b69
1421605a888
1513256ba2a
hexb8eab718

3102390040 has 32 divisors (see below), whose sum is σ = 7068744000. Its totient is φ = 1225246464.

The previous prime is 3102390037. The next prime is 3102390041. The reversal of 3102390040 is 400932013.

It is a junction number, because it is equal to n+sod(n) for n = 3102389993 and 3102390020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102390041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487725 + ... + 494044.

It is an arithmetic number, because the mean of its divisors is an integer number (220898250).

Almost surely, 23102390040 is an apocalyptic number.

It is an amenable number.

3102390040 is an abundant number, since it is smaller than the sum of its proper divisors (3966353960).

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

3102390040 is a wasteful number, since it uses less digits than its factorization.

3102390040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981859 (or 981855 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3102390040 is about 55699.1026857704. The cubic root of 3102390040 is about 1458.4743617918.

The spelling of 3102390040 in words is "three billion, one hundred two million, three hundred ninety thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 79 158 316 395 632 790 1580 3160 981769 1963538 3927076 4908845 7854152 9817690 19635380 39270760 77559751 155119502 310239004 387798755 620478008 775597510 1551195020 3102390040