Search a number
-
+
2551888388452 = 221397659976667
BaseRepresentation
bin100101001000101000011…
…001101010000101100100
3100000221212111012210210111
4211020220121222011210
5313302231411412302
65232153224302404
7352240113256024
oct45105031520544
910027774183714
102551888388452
118a4282516547
123526a6311a04
1315684674b480
148b725127a84
15465a916d0d7
hex2522866a164

2551888388452 has 48 divisors (see below), whose sum is σ = 4859708515200. Its totient is φ = 1165460585472.

The previous prime is 2551888388429. The next prime is 2551888388479. The reversal of 2551888388452 is 2548838881552.

It is a super-3 number, since 3×25518883884523 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 33247023 + ... + 33323689.

It is an arithmetic number, because the mean of its divisors is an integer number (101243927400).

Almost surely, 22551888388452 is an apocalyptic number.

It is an amenable number.

2551888388452 is a deficient number, since it is larger than the sum of its proper divisors (2307820126748).

2551888388452 is a wasteful number, since it uses less digits than its factorization.

2551888388452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83380 (or 83378 counting only the distinct ones).

The product of its digits is 196608000, while the sum is 67.

The spelling of 2551888388452 in words is "two trillion, five hundred fifty-one billion, eight hundred eighty-eight million, three hundred eighty-eight thousand, four hundred fifty-two".

Divisors: 1 2 4 13 26 52 97 194 388 1261 2522 5044 6599 13198 26396 76667 85787 153334 171574 306668 343148 640103 996671 1280206 1993342 2560412 3986684 7436699 8321339 14873398 16642678 29746796 33285356 96677087 193354174 386708348 505925533 1011851066 2023702132 6577031929 13154063858 26308127716 49074776701 98149553402 196299106804 637972097113 1275944194226 2551888388452