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368416081 = 1127614001
BaseRepresentation
bin10101111101011…
…001010101010001
3221200020110212001
4111331121111101
51223303303311
6100320234001
712062325235
oct2575312521
9850213761
10368416081
11179a63500
12a346b901
135b4336a7
1436d025c5
15225254c1
hex15f59551

368416081 has 12 divisors (see below), whose sum is σ = 405586692. Its totient is φ = 334400000.

The previous prime is 368416079. The next prime is 368416109. The reversal of 368416081 is 180614863.

It can be written as a sum of positive squares in 2 ways, for example, as 5856400 + 362559681 = 2420^2 + 19041^2 .

It is not a de Polignac number, because 368416081 - 21 = 368416079 is a prime.

It is a super-2 number, since 2×3684160812 = 271460817478797122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 368416081.

It is not an unprimeable number, because it can be changed into a prime (368416021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90081 + ... + 94081.

It is an arithmetic number, because the mean of its divisors is an integer number (33798891).

Almost surely, 2368416081 is an apocalyptic number.

It is an amenable number.

368416081 is a deficient number, since it is larger than the sum of its proper divisors (37170611).

368416081 is a wasteful number, since it uses less digits than its factorization.

368416081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784 (or 4773 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 368416081 is about 19194.1678902733. The cubic root of 368416081 is about 716.8795518516.

The spelling of 368416081 in words is "three hundred sixty-eight million, four hundred sixteen thousand, eighty-one".

Divisors: 1 11 121 761 4001 8371 44011 92081 484121 3044761 33492371 368416081