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406461243 = 31931376217
BaseRepresentation
bin11000001110100…
…001101100111011
31001022211101000010
4120032201230323
51313023224433
6104155513003
713033602126
oct3016415473
91038741003
10406461243
11199489391
12b4158763
1366294516
143bda73bd
1525a3ce63
hex183a1b3b

406461243 has 32 divisors (see below), whose sum is σ = 604887040. Its totient is φ = 241678080.

The previous prime is 406461229. The next prime is 406461259. The reversal of 406461243 is 342164604.

It is not a de Polignac number, because 406461243 - 28 = 406460987 is a prime.

It is a super-2 number, since 2×4064612432 = 330421484122210098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 406461243.

It is not an unprimeable number, because it can be changed into a prime (406463243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62271 + ... + 68487.

It is an arithmetic number, because the mean of its divisors is an integer number (18902720).

Almost surely, 2406461243 is an apocalyptic number.

406461243 is a deficient number, since it is larger than the sum of its proper divisors (198425797).

406461243 is a wasteful number, since it uses less digits than its factorization.

406461243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 406461243 is about 20160.8839835956. The cubic root of 406461243 is about 740.7523654339.

The spelling of 406461243 in words is "four hundred six million, four hundred sixty-one thousand, two hundred forty-three".

Divisors: 1 3 19 31 37 57 93 111 589 703 1147 1767 2109 3441 6217 18651 21793 65379 118123 192727 230029 354369 578181 690087 3661813 4370551 7130899 10985439 13111653 21392697 135487081 406461243