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55150160 = 24513192791
BaseRepresentation
bin1101001001100…
…0011001010000
310211202220210112
43102120121100
5103104301120
65250020452
71236524432
oct322303120
9124686715
1055150160
112914914a
1216577728
13b56c640
147478652
154c95bc5
hex3498650

55150160 has 80 divisors (see below), whose sum is σ = 145407360. Its totient is φ = 19284480.

The previous prime is 55150153. The next prime is 55150163. The reversal of 55150160 is 6105155.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55150163) 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, 18365 + ... + 21155.

It is an arithmetic number, because the mean of its divisors is an integer number (1817592).

Almost surely, 255150160 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 55150160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72703680).

55150160 is an abundant number, since it is smaller than the sum of its proper divisors (90257200).

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

55150160 is a wasteful number, since it uses less digits than its factorization.

55150160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836 (or 2830 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 55150160 is about 7426.3153717035. The cubic root of 55150160 is about 380.6410233107.

The spelling of 55150160 in words is "fifty-five million, one hundred fifty thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 19 20 26 38 40 52 65 76 80 95 104 130 152 190 208 247 260 304 380 494 520 760 988 1040 1235 1520 1976 2470 2791 3952 4940 5582 9880 11164 13955 19760 22328 27910 36283 44656 53029 55820 72566 106058 111640 145132 181415 212116 223280 265145 290264 362830 424232 530290 580528 689377 725660 848464 1060580 1378754 1451320 2121160 2757508 2902640 3446885 4242320 5515016 6893770 11030032 13787540 27575080 55150160