Search a number
-
+
2492700421 = 19312136519
BaseRepresentation
bin1001010010010011…
…1001011100000101
320102201110022010211
42110210321130011
520101112403141
61051203115421
7115525414111
oct22444713405
96381408124
102492700421
11106a0787a2
12596972b71
13309574a83
141990b0741
15e8c87d81
hex94939705

2492700421 has 12 divisors (see below), whose sum is σ = 2711287200. Its totient is φ = 2285311320.

The previous prime is 2492700407. The next prime is 2492700437. The reversal of 2492700421 is 1240072942.

It is not a de Polignac number, because 2492700421 - 25 = 2492700389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2492700491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50001 + ... + 86518.

It is an arithmetic number, because the mean of its divisors is an integer number (225940600).

Almost surely, 22492700421 is an apocalyptic number.

It is an amenable number.

2492700421 is a deficient number, since it is larger than the sum of its proper divisors (218586779).

2492700421 is a wasteful number, since it uses less digits than its factorization.

2492700421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136600 (or 136569 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2492700421 is about 49926.9508482142. The cubic root of 2492700421 is about 1355.8865801780.

The spelling of 2492700421 in words is "two billion, four hundred ninety-two million, seven hundred thousand, four hundred twenty-one".

Divisors: 1 19 31 589 961 18259 136519 2593861 4232089 80409691 131194759 2492700421