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202015142 = 2722061379
BaseRepresentation
bin11000000101010…
…00000110100110
3112002010102200022
430002220012212
5403203441032
632013515142
75002046300
oct1402500646
9462112608
10202015142
11a4039a6a
12577a2ab2
1332b115b4
141cb88970
1512b06512
hexc0a81a6

202015142 has 12 divisors (see below), whose sum is σ = 352495980. Its totient is φ = 86577876.

The previous prime is 202015133. The next prime is 202015147. The reversal of 202015142 is 241510202.

It is a self number, because there is not a number n which added to its sum of digits gives 202015142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202015147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1030592 + ... + 1030787.

It is an arithmetic number, because the mean of its divisors is an integer number (29374665).

Almost surely, 2202015142 is an apocalyptic number.

202015142 is a deficient number, since it is larger than the sum of its proper divisors (150480838).

202015142 is a wasteful number, since it uses less digits than its factorization.

202015142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061395 (or 2061388 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 202015142 is about 14213.2030872707. The cubic root of 202015142 is about 586.7610913929.

Adding to 202015142 its reverse (241510202), we get a palindrome (443525344).

The spelling of 202015142 in words is "two hundred two million, fifteen thousand, one hundred forty-two".

Divisors: 1 2 7 14 49 98 2061379 4122758 14429653 28859306 101007571 202015142