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40130552 = 2371165147
BaseRepresentation
bin1001100100010…
…1011111111000
32210111211202202
42121011133320
540233134202
63552045332
7665050460
oct231053770
983454682
1040130552
112071a750
1211533848
1384110b7
145488ba0
1537ca802
hex26457f8

40130552 has 32 divisors (see below), whose sum is σ = 93813120. Its totient is φ = 15635040.

The previous prime is 40130543. The next prime is 40130569. The reversal of 40130552 is 25503104.

It is a super-2 number, since 2×401305522 = 3220922407649408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31958 + ... + 33189.

It is an arithmetic number, because the mean of its divisors is an integer number (2931660).

Almost surely, 240130552 is an apocalyptic number.

It is an amenable number.

40130552 is an abundant number, since it is smaller than the sum of its proper divisors (53682568).

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

40130552 is a wasteful number, since it uses less digits than its factorization.

40130552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65171 (or 65167 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 40130552 is about 6334.8679544249. The cubic root of 40130552 is about 342.3668532489.

Adding to 40130552 its reverse (25503104), we get a palindrome (65633656).

The spelling of 40130552 in words is "forty million, one hundred thirty thousand, five hundred fifty-two".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 65147 130294 260588 456029 521176 716617 912058 1433234 1824116 2866468 3648232 5016319 5732936 10032638 20065276 40130552