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376720345 = 575344069
BaseRepresentation
bin10110011101000…
…100101111011001
3222020212101011101
4112131010233121
51232420022340
6101214231401
712223033021
oct2635045731
9866771141
10376720345
11183715631
12a61b5561
1360080461
1438064a81
1523115c9a
hex16744bd9

376720345 has 4 divisors (see below), whose sum is σ = 452064420. Its totient is φ = 301376272.

The previous prime is 376720321. The next prime is 376720349. The reversal of 376720345 is 543027673.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543027673 = 618902093.

It can be written as a sum of positive squares in 2 ways, for example, as 46498761 + 330221584 = 6819^2 + 18172^2 .

It is a cyclic number.

It is not a de Polignac number, because 376720345 - 25 = 376720313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (376720349) 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, 37672030 + ... + 37672039.

It is an arithmetic number, because the mean of its divisors is an integer number (113016105).

Almost surely, 2376720345 is an apocalyptic number.

It is an amenable number.

376720345 is a deficient number, since it is larger than the sum of its proper divisors (75344075).

376720345 is an equidigital number, since it uses as much as digits as its factorization.

376720345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75344074.

The product of its (nonzero) digits is 105840, while the sum is 37.

The square root of 376720345 is about 19409.2850203195. The cubic root of 376720345 is about 722.2258439485.

The spelling of 376720345 in words is "three hundred seventy-six million, seven hundred twenty thousand, three hundred forty-five".

Divisors: 1 5 75344069 376720345