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1380350667 = 31634196737
BaseRepresentation
bin101001001000110…
…0111101011001011
310120012101002010210
41102101213223023
510311332210132
6344545412203
746130533653
oct12221475313
93505332123
101380350667
11649198983
1232633a063
1318cc8bb57
14d1479363
15812b2bcc
hex52467acb

1380350667 has 16 divisors (see below), whose sum is σ = 1856453760. Its totient is φ = 912269952.

The previous prime is 1380350663. The next prime is 1380350669. The reversal of 1380350667 is 7660530831.

It is not a de Polignac number, because 1380350667 - 22 = 1380350663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1380350663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201523 + ... + 208259.

It is an arithmetic number, because the mean of its divisors is an integer number (116028360).

Almost surely, 21380350667 is an apocalyptic number.

1380350667 is a deficient number, since it is larger than the sum of its proper divisors (476103093).

1380350667 is a wasteful number, since it uses less digits than its factorization.

1380350667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1380350667 is about 37153.0707613785. The cubic root of 1380350667 is about 1113.4305755378.

The spelling of 1380350667 in words is "one billion, three hundred eighty million, three hundred fifty thousand, six hundred sixty-seven".

Divisors: 1 3 163 419 489 1257 6737 20211 68297 204891 1098131 2822803 3294393 8468409 460116889 1380350667