Search a number
-
+
147438148 = 221113383673
BaseRepresentation
bin10001100100110…
…11101001000100
3101021102122010011
420302123221010
5300221010043
622344040004
73440126554
oct1062335104
9337378104
10147438148
1176252510
1241463004
1324712b10
141581d164
15ce2559d
hex8c9ba44

147438148 has 48 divisors (see below), whose sum is σ = 304367616. Its totient is φ = 61608960.

The previous prime is 147438097. The next prime is 147438163. The reversal of 147438148 is 841834741.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 147438148.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218740 + ... + 219412.

It is an arithmetic number, because the mean of its divisors is an integer number (6340992).

Almost surely, 2147438148 is an apocalyptic number.

It is an amenable number.

147438148 is an abundant number, since it is smaller than the sum of its proper divisors (156929468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147438148 is a wasteful number, since it uses less digits than its factorization.

147438148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1082 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 147438148 is about 12142.4111279432. The cubic root of 147438148 is about 528.2870387930.

The spelling of 147438148 in words is "one hundred forty-seven million, four hundred thirty-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 383 572 673 766 1346 1532 2692 4213 4979 7403 8426 8749 9958 14806 16852 17498 19916 29612 34996 54769 96239 109538 192478 219076 257759 384956 515518 1031036 2835349 3350867 5670698 6701734 11341396 13403468 36859537 73719074 147438148