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1380314198 = 2690157099
BaseRepresentation
bin101001001000101…
…1110110001010110
310120012022020010002
41102101132301112
510311330023243
6344544531302
746130322434
oct12221366126
93505266102
101380314198
1164917353a
12326320b32
1318cc78383
14d1469d54
15812a6eb8
hex5245ec56

1380314198 has 4 divisors (see below), whose sum is σ = 2070471300. Its totient is φ = 690157098.

The previous prime is 1380314179. The next prime is 1380314207. The reversal of 1380314198 is 8914130831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8914130831 = 8951995881.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345078548 + ... + 345078551.

It is an arithmetic number, because the mean of its divisors is an integer number (517617825).

Almost surely, 21380314198 is an apocalyptic number.

1380314198 is a deficient number, since it is larger than the sum of its proper divisors (690157102).

1380314198 is an equidigital number, since it uses as much as digits as its factorization.

1380314198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690157101.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1380314198 is about 37152.5799642501. The cubic root of 1380314198 is about 1113.4207698031.

The spelling of 1380314198 in words is "one billion, three hundred eighty million, three hundred fourteen thousand, one hundred ninety-eight".

Divisors: 1 2 690157099 1380314198