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148986436 = 221723592
BaseRepresentation
bin10001110000101…
…01101001000100
3101101100021222011
420320111221010
5301120031221
622441144004
73456235534
oct1070255104
9341307864
10148986436
117710a795
1241a8b004
1324b35771
1415b034c4
15d12e1e1
hex8e15a44

148986436 has 27 divisors (see below), whose sum is σ = 277738909. Its totient is φ = 69915968.

The previous prime is 148986421. The next prime is 148986451. The reversal of 148986436 is 634689841.

The square root of 148986436 is 12206.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (148986421) and next prime (148986451).

It can be written as a sum of positive squares in only one way, i.e., 115992900 + 32993536 = 10770^2 + 5744^2 .

It is a super-2 number, since 2×1489864362 = 44393916223964192, 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 148986436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 414825 + ... + 415183.

Almost surely, 2148986436 is an apocalyptic number.

148986436 is the 12206-th square number.

It is an amenable number.

148986436 is a deficient number, since it is larger than the sum of its proper divisors (128752473).

148986436 is an equidigital number, since it uses as much as digits as its factorization.

148986436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 378 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The cubic root of 148986436 is about 530.1298317270.

Multiplying 148986436 by its sum of digits (49), we get a square (7300335364 = 854422).

The spelling of 148986436 in words is "one hundred forty-eight million, nine hundred eighty-six thousand, four hundred thirty-six".

Divisors: 1 2 4 17 34 68 289 359 578 718 1156 1436 6103 12206 24412 103751 128881 207502 257762 415004 515524 2190977 4381954 8763908 37246609 74493218 148986436