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151530340 = 22513582809
BaseRepresentation
bin10010000100000…
…10101101100100
3101120010112112211
421002002231210
5302242432330
623011453204
73516662263
oct1102025544
9346115484
10151530340
1178597a95
12428b7204
1325516630
14161a65da
15d482d2a
hex9082b64

151530340 has 24 divisors (see below), whose sum is σ = 342692280. Its totient is φ = 55949568.

The previous prime is 151530329. The next prime is 151530347. The reversal of 151530340 is 43035151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 338724 + 151191616 = 582^2 + 12296^2 .

It is a super-2 number, since 2×1515303402 = 45922887881031200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (151530347) 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, 291145 + ... + 291664.

It is an arithmetic number, because the mean of its divisors is an integer number (14278845).

Almost surely, 2151530340 is an apocalyptic number.

151530340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151530340 is an abundant number, since it is smaller than the sum of its proper divisors (191161940).

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

151530340 is a wasteful number, since it uses less digits than its factorization.

151530340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582831 (or 582829 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 151530340 is about 12309.7660416435. The cubic root of 151530340 is about 533.1300953047.

Adding to 151530340 its reverse (43035151), we get a palindrome (194565491).

The spelling of 151530340 in words is "one hundred fifty-one million, five hundred thirty thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 582809 1165618 2331236 2914045 5828090 7576517 11656180 15153034 30306068 37882585 75765170 151530340