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148811549121 = 3214928632
BaseRepresentation
bin1000101010010111011…
…1000000100111000001
3112020002221011221202100
42022211313000213001
54414231224032441
6152210231541013
713515455203614
oct2124567004701
9466087157670
10148811549121
1158124270444
1224a1082a769
131105729c9a1
1472b99ca17b
153d0e5c5cb6
hex22a5dc09c1

148811549121 has 27 divisors (see below), whose sum is σ = 216653361379. Its totient is φ = 98427690672.

The previous prime is 148811549113. The next prime is 148811549147. The reversal of 148811549121 is 121945118841.

The square root of 148811549121 is 385761.

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

148811549121 is a `hidden beast` number, since 1 + 4 + 8 + 81 + 1 + 549 + 1 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17434297521 + 131377251600 = 132039^2 + 362460^2 .

It is not a de Polignac number, because 148811549121 - 23 = 148811549113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148811549101) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 172434736 + ... + 172435598.

Almost surely, 2148811549121 is an apocalyptic number.

148811549121 is the 385761-st square number.

148811549121 is the 192881-st centered octagonal number.

It is an amenable number.

148811549121 is a deficient number, since it is larger than the sum of its proper divisors (67841812258).

148811549121 is an frugal number, since it uses more digits than its factorization.

148811549121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030 (or 1015 counting only the distinct ones).

The product of its digits is 92160, while the sum is 45.

The spelling of 148811549121 in words is "one hundred forty-eight billion, eight hundred eleven million, five hundred forty-nine thousand, one hundred twenty-one".

Divisors: 1 3 9 149 447 863 1341 2589 7767 22201 66603 128587 199809 385761 744769 1157283 2234307 6702921 19159463 57478389 110970581 172435167 332911743 998735229 16534616569 49603849707 148811549121