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1230893664 = 2537111312809
BaseRepresentation
bin100100101011101…
…1111001001100000
310011210010212200020
41021113133021200
510010102044124
6322050153440
742334265160
oct11127371140
93153125606
101230893664
115818976a0
122a4282880
13168020160
14b96925a0
15730de379
hex495df260

1230893664 has 192 divisors, whose sum is σ = 4338593280. Its totient is φ = 295096320.

The previous prime is 1230893647. The next prime is 1230893681. The reversal of 1230893664 is 4663980321.

It is an interprime number because it is at equal distance from previous prime (1230893647) and next prime (1230893681).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 89692 + ... + 102500.

It is an arithmetic number, because the mean of its divisors is an integer number (22596840).

Almost surely, 21230893664 is an apocalyptic number.

1230893664 is a gapful number since it is divisible by the number (14) 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 1230893664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2169296640).

1230893664 is an abundant number, since it is smaller than the sum of its proper divisors (3107699616).

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

1230893664 is a wasteful number, since it uses less digits than its factorization.

1230893664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12853 (or 12845 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 1230893664 is about 35084.0941738560. The cubic root of 1230893664 is about 1071.7006942680.

The spelling of 1230893664 in words is "one billion, two hundred thirty million, eight hundred ninety-three thousand, six hundred sixty-four".