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2154131054 = 27134694373
BaseRepresentation
bin1000000001100101…
…0110111001101110
312120010101012021122
42000121112321232
513402424143204
6553430300542
7104244545315
oct20031267156
95503335248
102154131054
11a05a505a9
125014b7752
1328439167a
1416613b27c
15c91ab0be
hex80656e6e

2154131054 has 16 divisors (see below), whose sum is σ = 3278400480. Its totient is φ = 1061346720.

The previous prime is 2154131041. The next prime is 2154131059. The reversal of 2154131054 is 4501314512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154131059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490412 + ... + 494784.

It is an arithmetic number, because the mean of its divisors is an integer number (204900030).

Almost surely, 22154131054 is an apocalyptic number.

2154131054 is a deficient number, since it is larger than the sum of its proper divisors (1124269426).

2154131054 is a wasteful number, since it uses less digits than its factorization.

2154131054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7915.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2154131054 is about 46412.6174008749. The cubic root of 2154131054 is about 1291.4889871579.

Adding to 2154131054 its reverse (4501314512), we get a palindrome (6655445566).

The spelling of 2154131054 in words is "two billion, one hundred fifty-four million, one hundred thirty-one thousand, fifty-four".

Divisors: 1 2 71 142 3469 4373 6938 8746 246299 310483 492598 620966 15169937 30339874 1077065527 2154131054