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400454041 = 1348616337
BaseRepresentation
bin10111110111100…
…111000110011001
31000220112011200011
4113313213012121
51310004012131
6103423041521
712631542331
oct2767470631
91026464604
10400454041
11196056059
12b21402a1
1364c70170
143b2820c1
15252530b1
hex17de7199

400454041 has 8 divisors (see below), whose sum is σ = 431414984. Its totient is φ = 369515520.

The previous prime is 400453981. The next prime is 400454083. The reversal of 400454041 is 140454004.

It can be written as a sum of positive squares in 4 ways, for example, as 52258441 + 348195600 = 7229^2 + 18660^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 400454041 - 27 = 400453913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400451041) 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, 60025 + ... + 66361.

It is an arithmetic number, because the mean of its divisors is an integer number (53926873).

Almost surely, 2400454041 is an apocalyptic number.

It is an amenable number.

400454041 is a deficient number, since it is larger than the sum of its proper divisors (30960943).

400454041 is a wasteful number, since it uses less digits than its factorization.

400454041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11211.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 400454041 is about 20011.3478056827. The cubic root of 400454041 is about 737.0849778695.

The spelling of 400454041 in words is "four hundred million, four hundred fifty-four thousand, forty-one".

Divisors: 1 13 4861 6337 63193 82381 30804157 400454041