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366441421 = 3179149629
BaseRepresentation
bin10101110101110…
…111001111001101
3221112112011010111
4111311313033031
51222302111141
6100210040021
712036462223
oct2565671715
9845464114
10366441421
11178934955
12a2879011
135abc1958
143694ab13
1522285381
hex15d773cd

366441421 has 8 divisors (see below), whose sum is σ = 383052800. Its totient is φ = 350129520.

The previous prime is 366441401. The next prime is 366441463. The reversal of 366441421 is 124144663.

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 366441421 - 27 = 366441293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366441401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72366 + ... + 77263.

It is an arithmetic number, because the mean of its divisors is an integer number (47881600).

Almost surely, 2366441421 is an apocalyptic number.

366441421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

366441421 is a deficient number, since it is larger than the sum of its proper divisors (16611379).

366441421 is a wasteful number, since it uses less digits than its factorization.

366441421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149739.

The product of its digits is 13824, while the sum is 31.

The square root of 366441421 is about 19142.6597159329. The cubic root of 366441421 is about 715.5964644800.

The spelling of 366441421 in words is "three hundred sixty-six million, four hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 31 79 2449 149629 4638499 11820691 366441421