Search a number
-
+
2531451340 = 2251114837759
BaseRepresentation
bin1001011011100010…
…1110000111001100
320112102101001102001
42112320232013030
520141022420330
61055105442044
7116505660415
oct22670560714
96472331361
102531451340
111089a35950
125a7940324
133145c1c02
141a02ba80c
15ec38e9ca
hex96e2e1cc

2531451340 has 48 divisors (see below), whose sum is σ = 5803983360. Its totient is φ = 919788480.

The previous prime is 2531451331. The next prime is 2531451353. The reversal of 2531451340 is 431541352.

2531451340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2531451299 and 2531451308.

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, 322381 + ... + 330139.

It is an arithmetic number, because the mean of its divisors is an integer number (120916320).

Almost surely, 22531451340 is an apocalyptic number.

2531451340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531451340 is an abundant number, since it is smaller than the sum of its proper divisors (3272532020).

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

2531451340 is a wasteful number, since it uses less digits than its factorization.

2531451340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9262 (or 9260 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2531451340 is about 50313.5303869645. The cubic root of 2531451340 is about 1362.8765778943.

Adding to 2531451340 its reverse (431541352), we get a palindrome (2962992692).

The spelling of 2531451340 in words is "two billion, five hundred thirty-one million, four hundred fifty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1483 2966 5932 7415 7759 14830 15518 16313 29660 31036 32626 38795 65252 77590 81565 85349 155180 163130 170698 326260 341396 426745 853490 1706980 11506597 23013194 46026388 57532985 115065970 126572567 230131940 253145134 506290268 632862835 1265725670 2531451340