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148484631 = 349494877
BaseRepresentation
bin10001101100110…
…11001000010111
3101100101210121210
420312123020113
5301003002011
622422312503
73452045541
oct1066331027
9340353553
10148484631
11768a7779
1241888733
13249bb239
1415a12691
15d0806a6
hex8d9b217

148484631 has 4 divisors (see below), whose sum is σ = 197979512. Its totient is φ = 98989752.

The previous prime is 148484629. The next prime is 148484653. The reversal of 148484631 is 136484841.

148484631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136484841 = 345494947.

It is not a de Polignac number, because 148484631 - 21 = 148484629 is a prime.

It is a super-2 number, since 2×1484846312 = 44095371286412322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148484631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148484131) 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, 24747436 + ... + 24747441.

It is an arithmetic number, because the mean of its divisors is an integer number (49494878).

Almost surely, 2148484631 is an apocalyptic number.

148484631 is a deficient number, since it is larger than the sum of its proper divisors (49494881).

148484631 is an equidigital number, since it uses as much as digits as its factorization.

148484631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49494880.

The product of its digits is 73728, while the sum is 39.

The square root of 148484631 is about 12185.4269929289. The cubic root of 148484631 is about 529.5339810075.

The spelling of 148484631 in words is "one hundred forty-eight million, four hundred eighty-four thousand, six hundred thirty-one".

Divisors: 1 3 49494877 148484631