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1012140 = 223255623
BaseRepresentation
bin11110111000110101100
31220102101200
43313012230
5224342030
633405500
711413563
oct3670654
91812350
101012140
11631488
12409890
132958cc
141c4bda
1514ed60
hexf71ac

1012140 has 36 divisors (see below), whose sum is σ = 3070704. Its totient is φ = 269856.

The previous prime is 1012133. The next prime is 1012147. The reversal of 1012140 is 412101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1012133) and next prime (1012147).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1012147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2632 + ... + 2991.

21012140 is an apocalyptic number.

1012140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012140 is an abundant number, since it is smaller than the sum of its proper divisors (2058564).

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

1012140 is a wasteful number, since it uses less digits than its factorization.

1012140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5638 (or 5633 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1012140 is about 1006.0516885330. The cubic root of 1012140 is about 100.4030400713.

Adding to 1012140 its reverse (412101), we get a palindrome (1424241).

The spelling of 1012140 in words is "one million, twelve thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 5623 11246 16869 22492 28115 33738 50607 56230 67476 84345 101214 112460 168690 202428 253035 337380 506070 1012140