Search a number
-
+
772428451 = 1922139691
BaseRepresentation
bin101110000010100…
…101001010100011
31222211110102122011
4232002211022203
53040220202301
6204351453351
725066350664
oct5602451243
91884412564
10772428451
11367019a23
12196827257
13c404b372
147482d36b
1547c2ca51
hex2e0a52a3

772428451 has 6 divisors (see below), whose sum is σ = 815222652. Its totient is φ = 731773980.

The previous prime is 772428431. The next prime is 772428463. The reversal of 772428451 is 154824277.

It is not a de Polignac number, because 772428451 - 27 = 772428323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772428401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1069485 + ... + 1070206.

It is an arithmetic number, because the mean of its divisors is an integer number (135870442).

Almost surely, 2772428451 is an apocalyptic number.

772428451 is a deficient number, since it is larger than the sum of its proper divisors (42794201).

772428451 is a wasteful number, since it uses less digits than its factorization.

772428451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139729 (or 2139710 counting only the distinct ones).

The product of its digits is 125440, while the sum is 40.

The square root of 772428451 is about 27792.5970538919. The cubic root of 772428451 is about 917.5281990605.

The spelling of 772428451 in words is "seven hundred seventy-two million, four hundred twenty-eight thousand, four hundred fifty-one".

Divisors: 1 19 361 2139691 40654129 772428451