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1068793920 = 263351031201
BaseRepresentation
bin111111101101001…
…000000001000000
32202111010100122000
4333231020001000
54142102401140
6254015544000
735325412155
oct7755100100
92674110560
101068793920
114a9340767
12259b2b000
13140575a4c
14a1d3822c
1563c6ea30
hex3fb48040

1068793920 has 224 divisors, whose sum is σ = 3810243840. Its totient is φ = 282009600.

The previous prime is 1068793907. The next prime is 1068793933. The reversal of 1068793920 is 293978601.

It is an interprime number because it is at equal distance from previous prime (1068793907) and next prime (1068793933).

It is a super-2 number, since 2×10687939202 = 2284640886857932800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 889320 + ... + 890520.

Almost surely, 21068793920 is an apocalyptic number.

1068793920 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 1068793920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905121920).

1068793920 is an abundant number, since it is smaller than the sum of its proper divisors (2741449920).

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

1068793920 is a wasteful number, since it uses less digits than its factorization.

1068793920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1068793920 is about 32692.4137989228. The cubic root of 1068793920 is about 1022.4246814558.

The spelling of 1068793920 in words is "one billion, sixty-eight million, seven hundred ninety-three thousand, nine hundred twenty".