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253678152 = 233713412833
BaseRepresentation
bin11110001111011…
…01001001001000
3122200100012000010
433013231021020
51004420200102
641101111520
76200141310
oct1707551110
9580305003
10253678152
11120216172
1270b585a0
134072c920
1425996440
151740dd6c
hexf1ed248

253678152 has 128 divisors (see below), whose sum is σ = 799868160. Its totient is φ = 65249280.

The previous prime is 253678141. The next prime is 253678157. The reversal of 253678152 is 251876352.

253678152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 253678152.

It is not an unprimeable number, because it can be changed into a prime (253678157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88128 + ... + 90960.

It is an arithmetic number, because the mean of its divisors is an integer number (6248970).

Almost surely, 2253678152 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 253678152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399934080).

253678152 is an abundant number, since it is smaller than the sum of its proper divisors (546190008).

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

253678152 is a wasteful number, since it uses less digits than its factorization.

253678152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903 (or 2899 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 253678152 is about 15927.2769800742. The cubic root of 253678152 is about 633.0349503649.

The spelling of 253678152 in words is "two hundred fifty-three million, six hundred seventy-eight thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 41 42 52 56 78 82 84 91 104 123 156 164 168 182 246 273 287 312 328 364 492 533 546 574 728 861 984 1066 1092 1148 1599 1722 2132 2184 2296 2833 3198 3444 3731 4264 5666 6396 6888 7462 8499 11193 11332 12792 14924 16998 19831 22386 22664 29848 33996 36829 39662 44772 59493 67992 73658 79324 89544 110487 116153 118986 147316 158648 220974 232306 237972 257803 294632 348459 441948 464612 475944 515606 696918 773409 813071 883896 929224 1031212 1393836 1509989 1546818 1626142 2062424 2439213 2787672 3019978 3093636 3252284 4529967 4878426 6039956 6187272 6504568 9059934 9756852 10569923 12079912 18119868 19513704 21139846 31709769 36239736 42279692 63419538 84559384 126839076 253678152