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378437213 = 7114914769
BaseRepresentation
bin10110100011100…
…111111001011101
3222101002121021002
4112203213321131
51233334442323
6101315120045
712243443330
oct2643477135
9871077232
10378437213
11184688530
12a68a3025
1360531a5b
1438390617
1523354828
hex168e7e5d

378437213 has 8 divisors (see below), whose sum is σ = 471817920. Its totient is φ = 294886080.

The previous prime is 378437201. The next prime is 378437219. The reversal of 378437213 is 312734873.

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 378437213 - 26 = 378437149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378437219) 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, 2457308 + ... + 2457461.

It is an arithmetic number, because the mean of its divisors is an integer number (58977240).

Almost surely, 2378437213 is an apocalyptic number.

It is an amenable number.

378437213 is a deficient number, since it is larger than the sum of its proper divisors (93380707).

378437213 is a wasteful number, since it uses less digits than its factorization.

378437213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4914787.

The product of its digits is 84672, while the sum is 38.

The square root of 378437213 is about 19453.4627508832. The cubic root of 378437213 is about 723.3213405012.

The spelling of 378437213 in words is "three hundred seventy-eight million, four hundred thirty-seven thousand, two hundred thirteen".

Divisors: 1 7 11 77 4914769 34403383 54062459 378437213