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20365152 = 253307691
BaseRepresentation
bin100110110101…
…1111101100000
31102022122201220
41031223331200
520203141102
62004255040
7335046423
oct115537540
942278656
1020365152
111054a705
1269a1480
1342b06b2
1429c19ba
151bc41bc
hex136bf60

20365152 has 48 divisors (see below), whose sum is σ = 53710272. Its totient is φ = 6756480.

The previous prime is 20365141. The next prime is 20365157. The reversal of 20365152 is 25156302.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20365157) 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, 29127 + ... + 29817.

It is an arithmetic number, because the mean of its divisors is an integer number (1118964).

Almost surely, 220365152 is an apocalyptic number.

It is an amenable number.

20365152 is an abundant number, since it is smaller than the sum of its proper divisors (33345120).

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

20365152 is a wasteful number, since it uses less digits than its factorization.

20365152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 20365152 is about 4512.7765289232. The cubic root of 20365152 is about 273.0837671803.

The spelling of 20365152 in words is "twenty million, three hundred sixty-five thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 307 614 691 921 1228 1382 1842 2073 2456 2764 3684 4146 4912 5528 7368 8292 9824 11056 14736 16584 22112 29472 33168 66336 212137 424274 636411 848548 1272822 1697096 2545644 3394192 5091288 6788384 10182576 20365152