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2320155031 = 10382127437
BaseRepresentation
bin1000101001001010…
…1100000110010111
312222200210002100211
42022102230012113
514222424430111
61022120550251
7111331664245
oct21222540627
95880702324
102320155031
11a907378a7
12549022387
132ac8b0ccc
141801d7795
15d8a53521
hex8a4ac197

2320155031 has 8 divisors (see below), whose sum is σ = 2345619744. Its totient is φ = 2294747040.

The previous prime is 2320155023. The next prime is 2320155049. The reversal of 2320155031 is 1305510232.

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 2320155031 - 23 = 2320155023 is a prime.

It is a super-2 number, since 2×23201550312 = 10766238735749221922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2320154993 and 2320155011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320155731) 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, 70845 + ... + 98281.

It is an arithmetic number, because the mean of its divisors is an integer number (293202468).

Almost surely, 22320155031 is an apocalyptic number.

2320155031 is a deficient number, since it is larger than the sum of its proper divisors (25464713).

2320155031 is a wasteful number, since it uses less digits than its factorization.

2320155031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28361.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2320155031 is about 48167.9876162582. The cubic root of 2320155031 is about 1323.8506764948.

Adding to 2320155031 its reverse (1305510232), we get a palindrome (3625665263).

The spelling of 2320155031 in words is "two billion, three hundred twenty million, one hundred fifty-five thousand, thirty-one".

Divisors: 1 103 821 27437 84563 2826011 22525777 2320155031