Search a number
-
+
11387075154 = 2371372728687
BaseRepresentation
bin10101001101011100…
…01111101001010010
31002101120210100112020
422212232033221102
5141310042401104
65121532312310
7552116353560
oct124656175122
932346710466
1011387075154
114913786114
122259612696
1310c6191cc0
147a046ca30
15469a4d2d9
hex2a6b8fa52

11387075154 has 64 divisors (see below), whose sum is σ = 28069257216. Its totient is φ = 2998949184.

The previous prime is 11387075149. The next prime is 11387075171. The reversal of 11387075154 is 45157078311.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382599 + ... + 411285.

It is an arithmetic number, because the mean of its divisors is an integer number (438582144).

Almost surely, 211387075154 is an apocalyptic number.

11387075154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11387075154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14034628608).

11387075154 is an abundant number, since it is smaller than the sum of its proper divisors (16682182062).

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

11387075154 is a wasteful number, since it uses less digits than its factorization.

11387075154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29439.

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 11387075154 in words is "eleven billion, three hundred eighty-seven million, seventy-five thousand, one hundred fifty-four".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 727 1454 2181 4362 5089 9451 10178 15267 18902 28353 28687 30534 56706 57374 66157 86061 132314 172122 198471 200809 372931 396942 401618 602427 745862 1118793 1204854 2237586 2610517 5221034 7831551 15663102 20855449 41710898 62566347 125132694 145988143 271120837 291976286 437964429 542241674 813362511 875928858 1626725022 1897845859 3795691718 5693537577 11387075154