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1380601800 = 233352255667
BaseRepresentation
bin101001001001010…
…0100111111001000
310120012211211122000
41102102210333020
510311413224200
6344555031000
746132631064
oct12222447710
93505754560
101380601800
1164934a626
1232643b460
13190049256
14d1502aa4
1581312300
hex524a4fc8

1380601800 has 96 divisors (see below), whose sum is σ = 4755424800. Its totient is φ = 368159040.

The previous prime is 1380601787. The next prime is 1380601819. The reversal of 1380601800 is 81060831.

It is a super-2 number, since 2×13806018002 = 3812122660326480000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122434 + ... + 133233.

It is an arithmetic number, because the mean of its divisors is an integer number (49535675).

Almost surely, 21380601800 is an apocalyptic number.

1380601800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380601800 is an abundant number, since it is smaller than the sum of its proper divisors (3374823000).

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

1380601800 is a wasteful number, since it uses less digits than its factorization.

1380601800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255692 (or 255677 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1380601800 is about 37156.4503148511. The cubic root of 1380601800 is about 1113.4980951452.

The spelling of 1380601800 in words is "one billion, three hundred eighty million, six hundred one thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 72 75 90 100 108 120 135 150 180 200 216 225 270 300 360 450 540 600 675 900 1080 1350 1800 2700 5400 255667 511334 767001 1022668 1278335 1534002 2045336 2301003 2556670 3068004 3835005 4602006 5113340 6136008 6391675 6903009 7670010 9204012 10226680 11505015 12783350 13806018 15340020 18408024 19175025 23010030 25566700 27612036 30680040 34515045 38350050 46020060 51133400 55224072 57525075 69030090 76700100 92040120 115050150 138060180 153400200 172575225 230100300 276120360 345150450 460200600 690300900 1380601800