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148436450 = 25217232
BaseRepresentation
bin10001101100011…
…11010111100010
3101100022100112022
420312033113202
5300444431300
622421301442
73451455221
oct1066172742
9340270468
10148436450
1176874558
1241864882
13249a2326
14159dccb8
15d071285
hex8d8f5e2

148436450 has 18 divisors (see below), whose sum is σ = 276252129. Its totient is φ = 59340120.

The previous prime is 148436443. The next prime is 148436459. The reversal of 148436450 is 54634841.

It can be written as a sum of positive squares in 2 ways, for example, as 145467721 + 2968729 = 12061^2 + 1723^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=8615.

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 148436450.

It is not an unprimeable number, because it can be changed into a prime (148436459) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 85289 + ... + 87011.

Almost surely, 2148436450 is an apocalyptic number.

148436450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148436450 is a deficient number, since it is larger than the sum of its proper divisors (127815679).

148436450 is an frugal number, since it uses more digits than its factorization.

148436450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458 (or 1730 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 148436450 is about 12183.4498398442. The cubic root of 148436450 is about 529.4766995757.

The spelling of 148436450 in words is "one hundred forty-eight million, four hundred thirty-six thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 1723 3446 8615 17230 43075 86150 2968729 5937458 14843645 29687290 74218225 148436450