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402769041 = 31397391307
BaseRepresentation
bin11000000000011…
…100010010010001
31001001212210020220
4120000130102101
51311102102131
6103544423253
712660323523
oct3000342221
91031783226
10402769041
11197397384
12b2a77b29
13655a0a9c
143b6c5a13
152555de96
hex1801c491

402769041 has 16 divisors (see below), whose sum is σ = 542035200. Its totient is φ = 266016528.

The previous prime is 402769039. The next prime is 402769043. The reversal of 402769041 is 140967204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (402769039) and next prime (402769043).

It is not a de Polignac number, because 402769041 - 21 = 402769039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402768993 and 402769011.

It is not an unprimeable number, because it can be changed into a prime (402769043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307510 + ... + 308816.

It is an arithmetic number, because the mean of its divisors is an integer number (33877200).

Almost surely, 2402769041 is an apocalyptic number.

It is an amenable number.

402769041 is a deficient number, since it is larger than the sum of its proper divisors (139266159).

402769041 is a wasteful number, since it uses less digits than its factorization.

402769041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 402769041 is about 20069.1066318359. The cubic root of 402769041 is about 738.5025971754.

The spelling of 402769041 in words is "four hundred two million, seven hundred sixty-nine thousand, forty-one".

Divisors: 1 3 139 417 739 1307 2217 3921 102721 181673 308163 545019 965873 2897619 134256347 402769041