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142502244 = 223371392309
BaseRepresentation
bin10000111111001…
…10100101100100
3100221010212022220
420133212211210
5242440032434
622050152340
73350151303
oct1037464544
9327125286
10142502244
1173491055
123b8826b0
13236a5271
1414cd643a
15c79cd49
hex87e6964

142502244 has 48 divisors (see below), whose sum is σ = 344097600. Its totient is φ = 45864576.

The previous prime is 142502237. The next prime is 142502249. The reversal of 142502244 is 442205241.

It is a happy number.

142502244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142502249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60562 + ... + 62870.

It is an arithmetic number, because the mean of its divisors is an integer number (7168700).

Almost surely, 2142502244 is an apocalyptic number.

It is an amenable number.

142502244 is an abundant number, since it is smaller than the sum of its proper divisors (201595356).

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

142502244 is a wasteful number, since it uses less digits than its factorization.

142502244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492 (or 2490 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 142502244 is about 11937.4303767603. The cubic root of 142502244 is about 522.3247051289.

Adding to 142502244 its reverse (442205241), we get a palindrome (584707485).

The spelling of 142502244 in words is "one hundred forty-two million, five hundred two thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 37 74 111 139 148 222 278 417 444 556 834 1668 2309 4618 5143 6927 9236 10286 13854 15429 20572 27708 30858 61716 85433 170866 256299 320951 341732 512598 641902 962853 1025196 1283804 1925706 3851412 11875187 23750374 35625561 47500748 71251122 142502244