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2381502431 = 71130928603
BaseRepresentation
bin1000110111110010…
…1101011111011111
320010222012212011202
42031330231133133
514334131034211
61032151510115
7113005302530
oct21574553737
96128185152
102381502431
111012329030
1256568833b
132bc510349
14188406687
15de12053b
hex8df2d7df

2381502431 has 8 divisors (see below), whose sum is σ = 2969145984. Its totient is φ = 1855716120.

The previous prime is 2381502421. The next prime is 2381502469. The reversal of 2381502431 is 1342051832.

It is a happy number.

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 2381502431 - 210 = 2381501407 is a prime.

It is a super-2 number, since 2×23815024312 = 11343107657717819522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2381502394 and 2381502403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381502421) 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, 15464225 + ... + 15464378.

It is an arithmetic number, because the mean of its divisors is an integer number (371143248).

Almost surely, 22381502431 is an apocalyptic number.

2381502431 is a deficient number, since it is larger than the sum of its proper divisors (587643553).

2381502431 is a wasteful number, since it uses less digits than its factorization.

2381502431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30928621.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2381502431 is about 48800.6396576930. The cubic root of 2381502431 is about 1335.4173357049.

The spelling of 2381502431 in words is "two billion, three hundred eighty-one million, five hundred two thousand, four hundred thirty-one".

Divisors: 1 7 11 77 30928603 216500221 340214633 2381502431