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378237053 = 2982915733
BaseRepresentation
bin10110100010110…
…111000001111101
3222100201102200202
4112202313001331
51233312041203
6101310533245
712241650635
oct2642670175
9870642622
10378237053
11184561107
12a6807225
136049190c
143833b6c5
1523315388
hex168b707d

378237053 has 8 divisors (see below), whose sum is σ = 391776600. Its totient is φ = 364730688.

The previous prime is 378237011. The next prime is 378237113. The reversal of 378237053 is 350732873.

It can be written as a sum of positive squares in 4 ways, for example, as 17123044 + 361114009 = 4138^2 + 19003^2 .

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 378237053 - 226 = 311128189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378236998 and 378237016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378237253) 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, 16175 + ... + 31907.

It is an arithmetic number, because the mean of its divisors is an integer number (48972075).

Almost surely, 2378237053 is an apocalyptic number.

It is an amenable number.

378237053 is a deficient number, since it is larger than the sum of its proper divisors (13539547).

378237053 is a wasteful number, since it uses less digits than its factorization.

378237053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16591.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 378237053 is about 19448.3174850680. The cubic root of 378237053 is about 723.1937935552.

The spelling of 378237053 in words is "three hundred seventy-eight million, two hundred thirty-seven thousand, fifty-three".

Divisors: 1 29 829 15733 24041 456257 13042657 378237053