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2498018381 = 6183521947
BaseRepresentation
bin1001010011100100…
…1011110001001101
320110002110111000022
42110321023301031
520103443042011
61051513111525
7115621543265
oct22471136115
96402414008
102498018381
111072080201
125986b85a5
1330a6b74b1
14199a967a5
15e94888db
hex94e4bc4d

2498018381 has 16 divisors (see below), whose sum is σ = 2577210048. Its totient is φ = 2420246400.

The previous prime is 2498018377. The next prime is 2498018387. The reversal of 2498018381 is 1838108942.

2498018381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2498018381 - 22 = 2498018377 is a prime.

It is a super-2 number, since 2×24980183812 = 12480191663627722322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2498018387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2637350 + ... + 2638296.

It is an arithmetic number, because the mean of its divisors is an integer number (161075628).

Almost surely, 22498018381 is an apocalyptic number.

It is an amenable number.

2498018381 is a deficient number, since it is larger than the sum of its proper divisors (79191667).

2498018381 is an equidigital number, since it uses as much as digits as its factorization.

2498018381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 2498018381 is about 49980.1798816291. The cubic root of 2498018381 is about 1356.8501174074.

The spelling of 2498018381 in words is "two billion, four hundred ninety-eight million, eighteen thousand, three hundred eighty-one".

Divisors: 1 61 83 521 947 5063 31781 43243 57767 78601 493387 2637823 4794661 30096607 40951121 2498018381