Search a number
-
+
1315970790 = 23543865693
BaseRepresentation
bin100111001110000…
…0001111011100110
310101201020020112220
41032130001323212
510143342031130
6334325453210
744416365351
oct11634017346
93351206486
101315970790
11615916372
12308871206
1317c83a454
14c6abb298
157a7e7410
hex4e701ee6

1315970790 has 16 divisors (see below), whose sum is σ = 3158329968. Its totient is φ = 350925536.

The previous prime is 1315970779. The next prime is 1315970797. The reversal of 1315970790 is 970795131.

1315970790 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315970797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21932817 + ... + 21932876.

It is an arithmetic number, because the mean of its divisors is an integer number (197395623).

Almost surely, 21315970790 is an apocalyptic number.

1315970790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315970790 is an abundant number, since it is smaller than the sum of its proper divisors (1842359178).

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

1315970790 is a wasteful number, since it uses less digits than its factorization.

1315970790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43865703.

The product of its (nonzero) digits is 59535, while the sum is 42.

The square root of 1315970790 is about 36276.3116923427. The cubic root of 1315970790 is about 1095.8440397141.

The spelling of 1315970790 in words is "one billion, three hundred fifteen million, nine hundred seventy thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 43865693 87731386 131597079 219328465 263194158 438656930 657985395 1315970790