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148445311 = 730117043
BaseRepresentation
bin10001101100100…
…01100001111111
3101100022210200111
420312101201333
5301000222221
622421410451
73451523110
oct1066214177
9340283614
10148445311
1176880183
1241869a27
13249a6381
1415a02207
15d073be1
hex8d9187f

148445311 has 8 divisors (see below), whose sum is σ = 169732224. Its totient is φ = 127178520.

The previous prime is 148445303. The next prime is 148445321. The reversal of 148445311 is 113544841.

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

It is not a de Polignac number, because 148445311 - 23 = 148445303 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 (148445321) 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, 17556 + ... + 24598.

It is an arithmetic number, because the mean of its divisors is an integer number (21216528).

Almost surely, 2148445311 is an apocalyptic number.

148445311 is a deficient number, since it is larger than the sum of its proper divisors (21286913).

148445311 is an equidigital number, since it uses as much as digits as its factorization.

148445311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061.

The product of its digits is 7680, while the sum is 31.

The square root of 148445311 is about 12183.8134834706. The cubic root of 148445311 is about 529.4872351723.

The spelling of 148445311 in words is "one hundred forty-eight million, four hundred forty-five thousand, three hundred eleven".

Divisors: 1 7 3011 7043 21077 49301 21206473 148445311