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2493897940 = 225124694897
BaseRepresentation
bin1001010010100101…
…1101110011010100
320102210201010211101
42110221131303110
520101414213230
61051244515444
7115541532322
oct22451356324
96383633741
102493897940
11106a816486
1259724bb84
133098a3b71
14199302d12
15e8e22aca
hex94a5dcd4

2493897940 has 12 divisors (see below), whose sum is σ = 5237185716. Its totient is φ = 997559168.

The previous prime is 2493897911. The next prime is 2493897983. The reversal of 2493897940 is 497983942.

2493897940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 471237264 + 2022660676 = 21708^2 + 44974^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62347429 + ... + 62347468.

It is an arithmetic number, because the mean of its divisors is an integer number (436432143).

Almost surely, 22493897940 is an apocalyptic number.

2493897940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2493897940 is an abundant number, since it is smaller than the sum of its proper divisors (2743287776).

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

2493897940 is a wasteful number, since it uses less digits than its factorization.

2493897940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124694906 (or 124694904 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 2493897940 is about 49938.9421193521. The cubic root of 2493897940 is about 1356.1036727179.

The spelling of 2493897940 in words is "two billion, four hundred ninety-three million, eight hundred ninety-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 124694897 249389794 498779588 623474485 1246948970 2493897940