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153872040 = 23357832207
BaseRepresentation
bin10010010101111…
…10011010101000
3101201112111202110
421022332122220
5303342401130
623134002320
73545614350
oct1112763250
9351474673
10153872040
1179947383
12436463a0
1325b5645a
1416615b60
15d796ab0
hex92be6a8

153872040 has 128 divisors (see below), whose sum is σ = 534159360. Its totient is φ = 34731264.

The previous prime is 153872023. The next prime is 153872041. The reversal of 153872040 is 40278351.

153872040 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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 153871989 and 153872007.

It is not an unprimeable number, because it can be changed into a prime (153872041) 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, 68617 + ... + 70823.

It is an arithmetic number, because the mean of its divisors is an integer number (4173120).

Almost surely, 2153872040 is an apocalyptic number.

153872040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153872040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267079680).

153872040 is an abundant number, since it is smaller than the sum of its proper divisors (380287320).

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

153872040 is a wasteful number, since it uses less digits than its factorization.

153872040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311 (or 2307 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 153872040 is about 12404.5169192516. The cubic root of 153872040 is about 535.8623411987.

The spelling of 153872040 in words is "one hundred fifty-three million, eight hundred seventy-two thousand, forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 83 84 105 120 140 166 168 210 249 280 332 415 420 498 581 664 830 840 996 1162 1245 1660 1743 1992 2207 2324 2490 2905 3320 3486 4414 4648 4980 5810 6621 6972 8715 8828 9960 11035 11620 13242 13944 15449 17430 17656 22070 23240 26484 30898 33105 34860 44140 46347 52968 61796 66210 69720 77245 88280 92694 123592 132420 154490 183181 185388 231735 264840 308980 366362 370776 463470 549543 617960 732724 915905 926940 1099086 1282267 1465448 1831810 1853880 2198172 2564534 2747715 3663620 3846801 4396344 5129068 5495430 6411335 7327240 7693602 10258136 10990860 12822670 15387204 19234005 21981720 25645340 30774408 38468010 51290680 76936020 153872040