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151147908 = 22324198553
BaseRepresentation
bin10010000001001…
…01010110000100
3101112102002221200
421000211112010
5302143213113
622555342500
73513510312
oct1100452604
9345362850
10151147908
117835672a
1242751a30
1325411542
14161070b2
15d409873
hex9025584

151147908 has 18 divisors (see below), whose sum is σ = 382068414. Its totient is φ = 50382624.

The previous prime is 151147903. The next prime is 151147921. The reversal of 151147908 is 809741151.

151147908 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 127644804 + 23503104 = 11298^2 + 4848^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4198553 = 151147908 / (1 + 5 + 1 + 1 + 4 + 7 + 9 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (151147903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2099241 + ... + 2099312.

It is an arithmetic number, because the mean of its divisors is an integer number (21226023).

Almost surely, 2151147908 is an apocalyptic number.

151147908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

151147908 is an abundant number, since it is smaller than the sum of its proper divisors (230920506).

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

151147908 is a wasteful number, since it uses less digits than its factorization.

151147908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198563 (or 4198558 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 151147908 is about 12294.2225455699. Note that the first 3 decimals coincide. The cubic root of 151147908 is about 532.6812132043.

The spelling of 151147908 in words is "one hundred fifty-one million, one hundred forty-seven thousand, nine hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 4198553 8397106 12595659 16794212 25191318 37786977 50382636 75573954 151147908