Search a number
-
+
2655899420 = 225197988471
BaseRepresentation
bin1001111001001101…
…1100111100011100
320212002112200002012
42132103130330130
520414402240140
61115313050352
7122546525666
oct23623347434
96762480065
102655899420
1111432055a9
126215569b8
13334315625
141b2a33536
15108273265
hex9e4dcf1c

2655899420 has 48 divisors (see below), whose sum is σ = 5945318400. Its totient is φ = 993695040.

The previous prime is 2655899419. The next prime is 2655899437. The reversal of 2655899420 is 249985562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14216 + ... + 74255.

It is an arithmetic number, because the mean of its divisors is an integer number (123860800).

Almost surely, 22655899420 is an apocalyptic number.

2655899420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2655899420 is an abundant number, since it is smaller than the sum of its proper divisors (3289418980).

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

2655899420 is a wasteful number, since it uses less digits than its factorization.

2655899420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88578 (or 88576 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 2655899420 is about 51535.4190824136. The cubic root of 2655899420 is about 1384.8536330878.

The spelling of 2655899420 in words is "two billion, six hundred fifty-five million, eight hundred ninety-nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 79 95 158 190 316 380 395 790 1501 1580 3002 6004 7505 15010 30020 88471 176942 353884 442355 884710 1680949 1769420 3361898 6723796 6989209 8404745 13978418 16809490 27956836 33618980 34946045 69892090 132794971 139784180 265589942 531179884 663974855 1327949710 2655899420