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151798930 = 2515179893
BaseRepresentation
bin10010000110001…
…00010010010010
3101120122011222121
421003010102102
5302330031210
623021324454
73522161323
oct1103042222
9346564877
10151798930
1178760868
1242a0672a
13255ab96a
141623644a
15d4d76da
hex90c4492

151798930 has 8 divisors (see below), whose sum is σ = 273238092. Its totient is φ = 60719568.

The previous prime is 151798903. The next prime is 151798931. The reversal of 151798930 is 39897151.

It can be written as a sum of positive squares in 2 ways, for example, as 150038001 + 1760929 = 12249^2 + 1327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (151798931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7589937 + ... + 7589956.

Almost surely, 2151798930 is an apocalyptic number.

151798930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151798930 is a deficient number, since it is larger than the sum of its proper divisors (121439162).

151798930 is a wasteful number, since it uses less digits than its factorization.

151798930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15179900.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 151798930 is about 12320.6708421254. The cubic root of 151798930 is about 533.4449033079. Note that the first 3 decimals are identical.

The spelling of 151798930 in words is "one hundred fifty-one million, seven hundred ninety-eight thousand, nine hundred thirty".

Divisors: 1 2 5 10 15179893 30359786 75899465 151798930