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148227942788 = 22299771307909
BaseRepresentation
bin1000101000001100010…
…0101110100110000100
3112011121021000200100222
42022003010232212010
54412032323132123
6152032303123512
713465140503462
oct2120304564604
9464537020328
10148227942788
115795489a362
12248892a3598
1310c933c3bb3
1472622ad832
153cc82456c8
hex228312e984

148227942788 has 24 divisors (see below), whose sum is σ = 268618555800. Its totient is φ = 71485019648.

The previous prime is 148227942781. The next prime is 148227942791. The reversal of 148227942788 is 887249722841.

It can be written as a sum of positive squares in 4 ways, for example, as 48979001344 + 99248941444 = 221312^2 + 315038^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 148227942788.

It is not an unprimeable number, because it can be changed into a prime (148227942781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540623 + ... + 767286.

It is an arithmetic number, because the mean of its divisors is an integer number (11192439825).

Almost surely, 2148227942788 is an apocalyptic number.

It is an amenable number.

148227942788 is a deficient number, since it is larger than the sum of its proper divisors (120390613012).

148227942788 is a wasteful number, since it uses less digits than its factorization.

148227942788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308919 (or 1308917 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 62.

The spelling of 148227942788 in words is "one hundred forty-eight billion, two hundred twenty-seven million, nine hundred forty-two thousand, seven hundred eighty-eight".

Divisors: 1 2 4 29 58 116 977 1954 3908 28333 56666 113332 1307909 2615818 5231636 37929361 75858722 151717444 1277827093 2555654186 5111308372 37056985697 74113971394 148227942788