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90244960 = 25513431009
BaseRepresentation
bin1010110000100…
…00011101100000
320021210220210221
411120100131200
5141100314320
612542132424
72144032561
oct530203540
9207726727
1090244960
1146a39413
1226281114
13159095b0
14bdb2168
157dc93aa
hex5610760

90244960 has 96 divisors (see below), whose sum is σ = 235176480. Its totient is φ = 32514048.

The previous prime is 90244951. The next prime is 90244967. The reversal of 90244960 is 6944209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90244967) 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, 88936 + ... + 89944.

It is an arithmetic number, because the mean of its divisors is an integer number (2449755).

Almost surely, 290244960 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 90244960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117588240).

90244960 is an abundant number, since it is smaller than the sum of its proper divisors (144931520).

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

90244960 is a wasteful number, since it uses less digits than its factorization.

90244960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 90244960 is about 9499.7347331386. The cubic root of 90244960 is about 448.5466859345.

It can be divided in two parts, 90244 and 960, that added together give a square (91204 = 3022).

The spelling of 90244960 in words is "ninety million, two hundred forty-four thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 43 52 65 80 86 104 130 160 172 208 215 260 344 416 430 520 559 688 860 1009 1040 1118 1376 1720 2018 2080 2236 2795 3440 4036 4472 5045 5590 6880 8072 8944 10090 11180 13117 16144 17888 20180 22360 26234 32288 40360 43387 44720 52468 65585 80720 86774 89440 104936 131170 161440 173548 209872 216935 262340 347096 419744 433870 524680 564031 694192 867740 1049360 1128062 1388384 1735480 2098720 2256124 2820155 3470960 4512248 5640310 6941920 9024496 11280620 18048992 22561240 45122480 90244960