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1020148 = 221931433
BaseRepresentation
bin11111001000011110100
31220211101021
43321003310
5230121043
633510524
711446123
oct3710364
91824337
101020148
116374a8
12412444
1329944c
141c7aba
151523ed
hexf90f4

1020148 has 24 divisors (see below), whose sum is σ = 1944320. Its totient is φ = 466560.

The previous prime is 1020143. The next prime is 1020157. The reversal of 1020148 is 8410201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2140 + ... + 2572.

21020148 is an apocalyptic number.

It is an amenable number.

1020148 is a deficient number, since it is larger than the sum of its proper divisors (924172).

1020148 is a wasteful number, since it uses less digits than its factorization.

1020148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1020148 is about 1010.0237620967. The cubic root of 1020148 is about 100.6671393533.

Adding to 1020148 its reverse (8410201), we get a palindrome (9430349).

The spelling of 1020148 in words is "one million, twenty thousand, one hundred forty-eight".

Divisors: 1 2 4 19 31 38 62 76 124 433 589 866 1178 1732 2356 8227 13423 16454 26846 32908 53692 255037 510074 1020148