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288742368 = 25323251521
BaseRepresentation
bin10001001101011…
…101101111100000
3202010022122001210
4101031131233200
51042404223433
644352430120
710104161325
oct2115355740
9663278053
10288742368
11138a95462
1280848340
1347a88995
142a4c2b4c
151a538463
hex1135dbe0

288742368 has 96 divisors (see below), whose sum is σ = 795578112. Its totient is φ = 91520000.

The previous prime is 288742367. The next prime is 288742369. The reversal of 288742368 is 863247882.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (288742367) and next prime (288742369).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288742367) 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, 553948 + ... + 554468.

It is an arithmetic number, because the mean of its divisors is an integer number (8287272).

Almost surely, 2288742368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288742368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397789056).

288742368 is an abundant number, since it is smaller than the sum of its proper divisors (506835744).

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

288742368 is a wasteful number, since it uses less digits than its factorization.

288742368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 800 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 288742368 is about 16992.4208987419. The cubic root of 288742368 is about 660.9523807916.

The spelling of 288742368 in words is "two hundred eighty-eight million, seven hundred forty-two thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 69 92 96 138 184 251 276 368 502 521 552 736 753 1004 1042 1104 1506 1563 2008 2084 2208 3012 3126 4016 4168 5773 6024 6252 8032 8336 11546 11983 12048 12504 16672 17319 23092 23966 24096 25008 34638 35949 46184 47932 50016 69276 71898 92368 95864 130771 138552 143796 184736 191728 261542 277104 287592 383456 392313 523084 554208 575184 784626 1046168 1150368 1569252 2092336 3007733 3138504 4184672 6015466 6277008 9023199 12030932 12554016 18046398 24061864 36092796 48123728 72185592 96247456 144371184 288742368