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41980987 = 409102643
BaseRepresentation
bin1010000000100…
…1010000111011
32220222212002101
42200021100323
541221342422
64055444231
71016555356
oct240112073
986885071
1041980987
1121773a34
1212086677
13890b429
14580b29d
153a43c27
hex280943b

41980987 has 4 divisors (see below), whose sum is σ = 42084040. Its totient is φ = 41877936.

The previous prime is 41980979. The next prime is 41981021. The reversal of 41980987 is 78908914.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41980987 - 23 = 41980979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41980907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50913 + ... + 51730.

It is an arithmetic number, because the mean of its divisors is an integer number (10521010).

Almost surely, 241980987 is an apocalyptic number.

41980987 is a deficient number, since it is larger than the sum of its proper divisors (103053).

41980987 is a wasteful number, since it uses less digits than its factorization.

41980987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103052.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 41980987 is about 6479.2736475627. The cubic root of 41980987 is about 347.5502044332.

It can be divided in two parts, 419 and 80987, that added together give a triangular number (81406 = T403).

The spelling of 41980987 in words is "forty-one million, nine hundred eighty thousand, nine hundred eighty-seven".

Divisors: 1 409 102643 41980987