Search a number
-
+
215533430341124 = 22719415559974923
BaseRepresentation
bin110001000000011011001001…
…100011010111111000000100
31001021010210110100021102210212
4301000123021203113320010
5211222244431131403444
62042222405130334552
763253530220556210
oct6100331143277004
91037123410242725
10215533430341124
116274823a534415
122020b9a588a458
13933593b5ab65c
143b31c33591940
1519db7bc1ad19e
hexc406c98d7e04

215533430341124 has 48 divisors (see below), whose sum is σ = 453756147532800. Its totient is φ = 87509513478816.

The previous prime is 215533430341123. The next prime is 215533430341171. The reversal of 215533430341124 is 421143034335512.

It is a super-2 number, since 2×2155334303411242 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215533430341123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220589927 + ... + 221564849.

It is an arithmetic number, because the mean of its divisors is an integer number (9453253073600).

Almost surely, 2215533430341124 is an apocalyptic number.

It is an amenable number.

215533430341124 is an abundant number, since it is smaller than the sum of its proper divisors (238222717191676).

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

215533430341124 is a wasteful number, since it uses less digits than its factorization.

215533430341124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390512 (or 1390510 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 215533430341124 its reverse (421143034335512), we get a palindrome (636676464676636).

The spelling of 215533430341124 in words is "two hundred fifteen trillion, five hundred thirty-three billion, four hundred thirty million, three hundred forty-one thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 415559 831118 974923 1662236 1949846 2908913 3899692 5817826 6824461 7895621 11635652 13648922 15791242 18523537 27297844 31582484 37047074 55269347 74094148 110538694 129664759 221077388 259329518 518659036 405138026957 810276053914 1620552107828 2835966188699 5671932377398 7697622512183 11343864754796 15395245024366 30790490048732 53883357585281 107766715170562 215533430341124