Search a number
-
+
1107621139 = 83129710289
BaseRepresentation
bin100001000000100…
…1111010100010011
32212012011222120011
41002001033110103
54232022334024
6301524055351
736306424102
oct10201172423
92765158504
101107621139
11519250179
1226ab34557
1314861b831
14a7164039
156738e094
hex4204f513

1107621139 has 8 divisors (see below), whose sum is σ = 1121939280. Its totient is φ = 1093326336.

The previous prime is 1107621127. The next prime is 1107621149. The reversal of 1107621139 is 9311267011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1107621139 - 25 = 1107621107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1107621139.

It is not an unprimeable number, because it can be changed into a prime (1107621149) 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, 102507 + ... + 112795.

It is an arithmetic number, because the mean of its divisors is an integer number (140242410).

Almost surely, 21107621139 is an apocalyptic number.

1107621139 is a deficient number, since it is larger than the sum of its proper divisors (14318141).

1107621139 is a wasteful number, since it uses less digits than its factorization.

1107621139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11669.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 1107621139 is about 33280.9425798008. The cubic root of 1107621139 is about 1034.6586158131.

The spelling of 1107621139 in words is "one billion, one hundred seven million, six hundred twenty-one thousand, one hundred thirty-nine".

Divisors: 1 83 1297 10289 107651 853987 13344833 1107621139