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2520055031 = 131271526381
BaseRepresentation
bin1001011000110100…
…1111110011110111
320111121221001121112
42112031033303313
520130113230111
61054021305235
7116310054134
oct22615176367
96447831545
102520055031
11108356170a
125a3b6521b
13312131930
1419c99158b
15eb38ce8b
hex9634fcf7

2520055031 has 8 divisors (see below), whose sum is σ = 2735276544. Its totient is φ = 2307886560.

The previous prime is 2520055019. The next prime is 2520055073. The reversal of 2520055031 is 1305500252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2520055031 - 26 = 2520054967 is a prime.

It is a super-2 number, since 2×25200550312 = 12701354718536821922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2520054988 and 2520055006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520055331) 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, 761540 + ... + 764841.

It is an arithmetic number, because the mean of its divisors is an integer number (341909568).

Almost surely, 22520055031 is an apocalyptic number.

2520055031 is a deficient number, since it is larger than the sum of its proper divisors (215221513).

2520055031 is a wasteful number, since it uses less digits than its factorization.

2520055031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526521.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 2520055031 is about 50200.1497109321. The cubic root of 2520055031 is about 1360.8283288327.

Adding to 2520055031 its reverse (1305500252), we get a palindrome (3825555283).

The spelling of 2520055031 in words is "two billion, five hundred twenty million, fifty-five thousand, thirty-one".

Divisors: 1 13 127 1651 1526381 19842953 193850387 2520055031