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2303493888 = 28313721893
BaseRepresentation
bin1000100101001100…
…1000011100000000
312221112102121120110
42021103020130000
514204143301023
61020323511320
7111040242423
oct21123103400
95845377513
102303493888
11a82298063
12543528540
132a92c9547
1417bcdb9ba
15d7361a93
hex894c8700

2303493888 has 72 divisors (see below), whose sum is σ = 6175684368. Its totient is φ = 762191872.

The previous prime is 2303493883. The next prime is 2303493889. The reversal of 2303493888 is 8883943032.

It is a happy number.

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 (2303493883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94270 + ... + 116162.

It is an arithmetic number, because the mean of its divisors is an integer number (85773394).

Almost surely, 22303493888 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 2303493888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3087842184).

2303493888 is an abundant number, since it is smaller than the sum of its proper divisors (3872190480).

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

2303493888 is a wasteful number, since it uses less digits than its factorization.

2303493888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22049 (or 22035 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The square root of 2303493888 is about 47994.7277104475. The cubic root of 2303493888 is about 1320.6741826954.

The spelling of 2303493888 in words is "two billion, three hundred three million, four hundred ninety-three thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 137 192 256 274 384 411 548 768 822 1096 1644 2192 3288 4384 6576 8768 13152 17536 21893 26304 35072 43786 52608 65679 87572 105216 131358 175144 262716 350288 525432 700576 1050864 1401152 2101728 2802304 2999341 4203456 5604608 5998682 8406912 8998023 11997364 16813824 17996046 23994728 35992092 47989456 71984184 95978912 143968368 191957824 287936736 383915648 575873472 767831296 1151746944 2303493888