Search a number
-
+
1013748788 = 221319495169
BaseRepresentation
bin111100011011001…
…001010000110100
32121122112202220102
4330123021100310
54034004430123
6244332053232
734056502553
oct7433112064
92548482812
101013748788
11480264518
12243604218
13132042170
14988c9d9a
155deea028
hex3c6c9434

1013748788 has 12 divisors (see below), whose sum is σ = 1910526660. Its totient is φ = 467884032.

The previous prime is 1013748787. The next prime is 1013748833. The reversal of 1013748788 is 8878473101.

It can be written as a sum of positive squares in 2 ways, for example, as 267257104 + 746491684 = 16348^2 + 27322^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013748787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9747533 + ... + 9747636.

It is an arithmetic number, because the mean of its divisors is an integer number (159210555).

Almost surely, 21013748788 is an apocalyptic number.

It is an amenable number.

1013748788 is a deficient number, since it is larger than the sum of its proper divisors (896777872).

1013748788 is a wasteful number, since it uses less digits than its factorization.

1013748788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19495186 (or 19495184 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 47.

The square root of 1013748788 is about 31839.4219168627. The cubic root of 1013748788 is about 1004.5620850636.

The spelling of 1013748788 in words is "one billion, thirteen million, seven hundred forty-eight thousand, seven hundred eighty-eight".

Divisors: 1 2 4 13 26 52 19495169 38990338 77980676 253437197 506874394 1013748788