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152450320 = 24511215749
BaseRepresentation
bin10010001011000…
…11010100010000
3101121212021112011
421011203110100
5303011402240
623043312304
73530543401
oct1105432420
9347767464
10152450320
1179066200
124307b694
13257792b9
14163659a8
15d5b56ea
hex9163510

152450320 has 60 divisors (see below), whose sum is σ = 389623500. Its totient is φ = 55432960.

The previous prime is 152450299. The next prime is 152450321. The reversal of 152450320 is 23054251.

It can be written as a sum of positive squares in 2 ways, for example, as 22581504 + 129868816 = 4752^2 + 11396^2 .

It is a super-2 number, since 2×1524503202 = 46482200136204800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 152450291 and 152450300.

It is not an unprimeable number, because it can be changed into a prime (152450321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1806 + ... + 17554.

It is an arithmetic number, because the mean of its divisors is an integer number (6493725).

Almost surely, 2152450320 is an apocalyptic number.

152450320 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 152450320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194811750).

152450320 is an abundant number, since it is smaller than the sum of its proper divisors (237173180).

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

152450320 is a wasteful number, since it uses less digits than its factorization.

152450320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15784 (or 15767 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 152450320 is about 12347.0773869770. The cubic root of 152450320 is about 534.2068428641.

The spelling of 152450320 in words is "one hundred fifty-two million, four hundred fifty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 121 176 220 242 440 484 605 880 968 1210 1936 2420 4840 9680 15749 31498 62996 78745 125992 157490 173239 251984 314980 346478 629960 692956 866195 1259920 1385912 1732390 1905629 2771824 3464780 3811258 6929560 7622516 9528145 13859120 15245032 19056290 30490064 38112580 76225160 152450320