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40180274 = 261732561
BaseRepresentation
bin1001100101000…
…1101000110010
32210121100222022
42121101220302
540241232044
63553111442
7665345441
oct231215062
983540868
1040180274
1120754042
1211558582
13842a914
14549cd58
1537da3ee
hex2651a32

40180274 has 8 divisors (see below), whose sum is σ = 60369948. Its totient is φ = 20056960.

The previous prime is 40180271. The next prime is 40180277. The reversal of 40180274 is 47208104.

It is an interprime number because it is at equal distance from previous prime (40180271) and next prime (40180277).

It can be written as a sum of positive squares in 2 ways, for example, as 39150049 + 1030225 = 6257^2 + 1015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×401802742 = 3228908837430152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40180271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15047 + ... + 17514.

Almost surely, 240180274 is an apocalyptic number.

40180274 is a deficient number, since it is larger than the sum of its proper divisors (20189674).

40180274 is a wasteful number, since it uses less digits than its factorization.

40180274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33180.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 40180274 is about 6338.7912096866. The cubic root of 40180274 is about 342.5081931015.

Adding to 40180274 its reverse (47208104), we get a palindrome (87388378).

The spelling of 40180274 in words is "forty million, one hundred eighty thousand, two hundred seventy-four".

Divisors: 1 2 617 1234 32561 65122 20090137 40180274