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142025224 = 23119671669
BaseRepresentation
bin10000111011100…
…10001000001000
3100220020121222111
420131302020020
5242324301344
622032032104
73343123465
oct1035621010
9326217874
10142025224
1173195720
123b692634
13235690c3
1414c1066c
15c706834
hex8772208

142025224 has 32 divisors (see below), whose sum is σ = 290980800. Its totient is φ = 64451520.

The previous prime is 142025137. The next prime is 142025231. The reversal of 142025224 is 422520241.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 142025195 and 142025204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84262 + ... + 85930.

It is an arithmetic number, because the mean of its divisors is an integer number (9093150).

Almost surely, 2142025224 is an apocalyptic number.

It is an amenable number.

142025224 is an abundant number, since it is smaller than the sum of its proper divisors (148955576).

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

142025224 is a wasteful number, since it uses less digits than its factorization.

142025224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653 (or 2649 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 142025224 is about 11917.4336163454. The cubic root of 142025224 is about 521.7412339295.

Adding to 142025224 its reverse (422520241), we get a palindrome (564545465).

The spelling of 142025224 in words is "one hundred forty-two million, twenty-five thousand, two hundred twenty-four".

Divisors: 1 2 4 8 11 22 44 88 967 1669 1934 3338 3868 6676 7736 10637 13352 18359 21274 36718 42548 73436 85096 146872 1613923 3227846 6455692 12911384 17753153 35506306 71012612 142025224