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379753021 = 1722338413
BaseRepresentation
bin10110101000101…
…001001000111101
3222110120110012201
4112220221020331
51234204044041
6101403231501
712260563444
oct2650511075
9873513181
10379753021
111853a707a
12a7218591
13608a293b
1438613d5b
1523514631
hex16a2923d

379753021 has 4 divisors (see below), whose sum is σ = 402091452. Its totient is φ = 357414592.

The previous prime is 379753001. The next prime is 379753039. The reversal of 379753021 is 120357973.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 350213796 + 29539225 = 18714^2 + 5435^2 .

It is a cyclic number.

It is not a de Polignac number, because 379753021 - 29 = 379752509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379753001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11169190 + ... + 11169223.

It is an arithmetic number, because the mean of its divisors is an integer number (100522863).

Almost surely, 2379753021 is an apocalyptic number.

It is an amenable number.

379753021 is a deficient number, since it is larger than the sum of its proper divisors (22338431).

379753021 is a wasteful number, since it uses less digits than its factorization.

379753021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22338430.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 379753021 is about 19487.2527822677. The cubic root of 379753021 is about 724.1586886215.

The spelling of 379753021 in words is "three hundred seventy-nine million, seven hundred fifty-three thousand, twenty-one".

Divisors: 1 17 22338413 379753021