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148285551 = 3129138287
BaseRepresentation
bin10001101011010…
…10100001101111
3101100000200112110
420311222201233
5300430114201
622414135103
73450256251
oct1065524157
9340020473
10148285551
1176781147
12417b1493
132494b73b
141599dcd1
15d0416d6
hex8d6a86f

148285551 has 8 divisors (see below), whose sum is σ = 197872384. Its totient is φ = 98777880.

The previous prime is 148285547. The next prime is 148285589. The reversal of 148285551 is 155582841.

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

It is not a de Polignac number, because 148285551 - 22 = 148285547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148285541) 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, 15271 + ... + 23016.

It is an arithmetic number, because the mean of its divisors is an integer number (24734048).

Almost surely, 2148285551 is an apocalyptic number.

148285551 is a deficient number, since it is larger than the sum of its proper divisors (49586833).

148285551 is a wasteful number, since it uses less digits than its factorization.

148285551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39581.

The product of its digits is 64000, while the sum is 39.

The square root of 148285551 is about 12177.2554789657. The cubic root of 148285551 is about 529.2972185157.

The spelling of 148285551 in words is "one hundred forty-eight million, two hundred eighty-five thousand, five hundred fifty-one".

Divisors: 1 3 1291 3873 38287 114861 49428517 148285551