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1368341860 = 2253111319531
BaseRepresentation
bin101000110001111…
…0011110101100100
310112100202222011011
41101203303311210
510300243414420
6343440152004
745623466604
oct12143636544
93470688134
101368341860
11642436546
12322308604
1318a645b52
14cda30c04
15801de95a
hex518f3d64

1368341860 has 48 divisors (see below), whose sum is σ = 2992614912. Its totient is φ = 524966400.

The previous prime is 1368341851. The next prime is 1368341869. The reversal of 1368341860 is 681438631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1368341851) and next prime (1368341869).

It is not an unprimeable number, because it can be changed into a prime (1368341869) 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, 60295 + ... + 79825.

It is an arithmetic number, because the mean of its divisors is an integer number (62346144).

Almost surely, 21368341860 is an apocalyptic number.

1368341860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368341860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496307456).

1368341860 is an abundant number, since it is smaller than the sum of its proper divisors (1624273052).

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

1368341860 is a wasteful number, since it uses less digits than its factorization.

1368341860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19684 (or 19682 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1368341860 is about 36991.1051470485. The cubic root of 1368341860 is about 1110.1922833301.

The spelling of 1368341860 in words is "one billion, three hundred sixty-eight million, three hundred forty-one thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 31 62 113 124 155 226 310 452 565 620 1130 2260 3503 7006 14012 17515 19531 35030 39062 70060 78124 97655 195310 390620 605461 1210922 2207003 2421844 3027305 4414006 6054610 8828012 11035015 12109220 22070030 44140060 68417093 136834186 273668372 342085465 684170930 1368341860