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1358868380 = 22567943419
BaseRepresentation
bin101000011111110…
…1010111110011100
310111200221122222112
41100333222332130
510240332242010
6342501133152
745450122252
oct12077527634
93450848875
101358868380
11638055a21
1231b0ba1b8
131886a9b3c
14cc6865d2
157e46ca05
hex50feaf9c

1358868380 has 12 divisors (see below), whose sum is σ = 2853623640. Its totient is φ = 543547344.

The previous prime is 1358868347. The next prime is 1358868403. The reversal of 1358868380 is 838688531.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33971690 + ... + 33971729.

It is an arithmetic number, because the mean of its divisors is an integer number (237801970).

Almost surely, 21358868380 is an apocalyptic number.

1358868380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1358868380 is an abundant number, since it is smaller than the sum of its proper divisors (1494755260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1358868380 is a wasteful number, since it uses less digits than its factorization.

1358868380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67943428 (or 67943426 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The square root of 1358868380 is about 36862.8319584917. The cubic root of 1358868380 is about 1107.6242725480.

The spelling of 1358868380 in words is "one billion, three hundred fifty-eight million, eight hundred sixty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 67943419 135886838 271773676 339717095 679434190 1358868380