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145012052 = 22103351971
BaseRepresentation
bin10001010010010…
…11010101010100
3101002212101010202
420221023111110
5244110341202
622220040032
73410403443
oct1051132524
9332771122
10145012052
1174945779
1240693018
1324073763
141538ad5a
15cae6802
hex8a4b554

145012052 has 12 divisors (see below), whose sum is σ = 256235616. Its totient is φ = 71801880.

The previous prime is 145012051. The next prime is 145012097. The reversal of 145012052 is 250210541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145012051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175574 + ... + 176397.

It is an arithmetic number, because the mean of its divisors is an integer number (21352968).

Almost surely, 2145012052 is an apocalyptic number.

It is an amenable number.

145012052 is a deficient number, since it is larger than the sum of its proper divisors (111223564).

145012052 is a wasteful number, since it uses less digits than its factorization.

145012052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352078 (or 352076 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 145012052 is about 12042.0950004557. The cubic root of 145012052 is about 525.3733423037.

Adding to 145012052 its reverse (250210541), we get a palindrome (395222593).

The spelling of 145012052 in words is "one hundred forty-five million, twelve thousand, fifty-two".

Divisors: 1 2 4 103 206 412 351971 703942 1407884 36253013 72506026 145012052