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381970473 = 3413105451
BaseRepresentation
bin10110110001000…
…110100000101001
3222121202002222120
4112301012200221
51240241023343
6101522541453
712315460353
oct2661064051
9877662876
10381970473
11186681085
12a7b07889
136119b041
1438a300d3
1523801683
hex16c46829

381970473 has 8 divisors (see below), whose sum is σ = 521715936. Its totient is φ = 248436000.

The previous prime is 381970447. The next prime is 381970493. The reversal of 381970473 is 374079183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 381970473 - 25 = 381970441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381970423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1552603 + ... + 1552848.

It is an arithmetic number, because the mean of its divisors is an integer number (65214492).

Almost surely, 2381970473 is an apocalyptic number.

It is an amenable number.

381970473 is a deficient number, since it is larger than the sum of its proper divisors (139745463).

381970473 is a wasteful number, since it uses less digits than its factorization.

381970473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105495.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 381970473 is about 19544.0649047224. The cubic root of 381970473 is about 725.5654553375.

The spelling of 381970473 in words is "three hundred eighty-one million, nine hundred seventy thousand, four hundred seventy-three".

Divisors: 1 3 41 123 3105451 9316353 127323491 381970473