Search a number
-
+
2487642040 = 2351329164963
BaseRepresentation
bin1001010001000110…
…0110011110111000
320102100221022100101
42110101212132320
520043314021130
61050502445144
7115434415462
oct22421463670
96370838311
102487642040
111067233314
125951337b4
133084c3550
14198555132
15e85d91ca
hex944667b8

2487642040 has 64 divisors (see below), whose sum is σ = 6235639200. Its totient is φ = 886835712.

The previous prime is 2487641993. The next prime is 2487642049. The reversal of 2487642040 is 402467842.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487642049) 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, 67402 + ... + 97561.

Almost surely, 22487642040 is an apocalyptic number.

2487642040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2487642040 is an abundant number, since it is smaller than the sum of its proper divisors (3747997160).

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

2487642040 is a wasteful number, since it uses less digits than its factorization.

2487642040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165016 (or 165012 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 37.

The square root of 2487642040 is about 49876.2673021949. The cubic root of 2487642040 is about 1354.9688023572.

The spelling of 2487642040 in words is "two billion, four hundred eighty-seven million, six hundred forty-two thousand, forty".

Divisors: 1 2 4 5 8 10 13 20 26 29 40 52 58 65 104 116 130 145 232 260 290 377 520 580 754 1160 1508 1885 3016 3770 7540 15080 164963 329926 659852 824815 1319704 1649630 2144519 3299260 4289038 4783927 6598520 8578076 9567854 10722595 17156152 19135708 21445190 23919635 38271416 42890380 47839270 62191051 85780760 95678540 124382102 191357080 248764204 310955255 497528408 621910510 1243821020 2487642040