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3120231020 = 2251523102437
BaseRepresentation
bin1011100111111010…
…1111001001101100
322001110021011021212
42321332233021230
522342234343040
61233341213552
7140215345304
oct27176571154
98043234255
103120231020
11136131a825
12730b612b8
133a958c65a
14218582604
15133de2d65
hexb9faf26c

3120231020 has 24 divisors (see below), whose sum is σ = 6556851504. Its totient is φ = 1247260736.

The previous prime is 3120231019. The next prime is 3120231029. The reversal of 3120231020 is 201320213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3120230986 and 3120231004.

It is not an unprimeable number, because it can be changed into a prime (3120231029) 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, 20759 + ... + 81678.

It is an arithmetic number, because the mean of its divisors is an integer number (273202146).

Almost surely, 23120231020 is an apocalyptic number.

It is an amenable number.

3120231020 is an abundant number, since it is smaller than the sum of its proper divisors (3436620484).

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

3120231020 is a wasteful number, since it uses less digits than its factorization.

3120231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103969 (or 103967 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3120231020 is about 55859.0280975242. The cubic root of 3120231020 is about 1461.2647794201.

Adding to 3120231020 its reverse (201320213), we get a palindrome (3321551233).

The spelling of 3120231020 in words is "three billion, one hundred twenty million, two hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 1523 3046 6092 7615 15230 30460 102437 204874 409748 512185 1024370 2048740 156011551 312023102 624046204 780057755 1560115510 3120231020