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7541980134 = 2313880710979
BaseRepresentation
bin1110000011000100…
…10111101111100110
3201110121120021202120
413001202113233212
5110421221331014
63244214450410
7354616526163
oct70142275746
921417507676
107541980134
113220284337
121565963a06
13932698c50
1451791d06a
152e21c5ba9
hex1c1897be6

7541980134 has 32 divisors (see below), whose sum is σ = 16247589120. Its totient is φ = 2320134432.

The previous prime is 7541980133. The next prime is 7541980157. The reversal of 7541980134 is 4310891457.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7541980133) 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, 681457 + ... + 692435.

It is an arithmetic number, because the mean of its divisors is an integer number (507737160).

Almost surely, 27541980134 is an apocalyptic number.

7541980134 is an abundant number, since it is smaller than the sum of its proper divisors (8705608986).

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

7541980134 is a wasteful number, since it uses less digits than its factorization.

7541980134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19804.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 7541980134 is about 86844.5745801083. The cubic root of 7541980134 is about 1961.0791757580.

The spelling of 7541980134 in words is "seven billion, five hundred forty-one million, nine hundred eighty thousand, one hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 78 8807 10979 17614 21958 26421 32937 52842 65874 114491 142727 228982 285454 343473 428181 686946 856362 96692053 193384106 290076159 580152318 1256996689 2513993378 3770990067 7541980134