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142963233 = 3724871997
BaseRepresentation
bin10001000010101…
…11001000100001
3100222000021200120
420201113020201
5243044310413
622104110453
73354111300
oct1041271041
9328007616
10142963233
1173776436
123ba65429
132380703a
1414db6437
15c83e723
hex8857221

142963233 has 24 divisors (see below), whose sum is σ = 222305472. Its totient is φ = 81484704.

The previous prime is 142963231. The next prime is 142963241. The reversal of 142963233 is 332369241.

It is not a de Polignac number, because 142963233 - 21 = 142963231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142963194 and 142963203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142963231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70591 + ... + 72587.

It is an arithmetic number, because the mean of its divisors is an integer number (9262728).

Almost surely, 2142963233 is an apocalyptic number.

It is an amenable number.

142963233 is a deficient number, since it is larger than the sum of its proper divisors (79342239).

142963233 is a wasteful number, since it uses less digits than its factorization.

142963233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501 (or 2494 counting only the distinct ones).

The product of its digits is 23328, while the sum is 33.

The square root of 142963233 is about 11956.7233387747. The cubic root of 142963233 is about 522.8873319763.

The spelling of 142963233 in words is "one hundred forty-two million, nine hundred sixty-three thousand, two hundred thirty-three".

Divisors: 1 3 7 21 49 147 487 1461 1997 3409 5991 10227 13979 23863 41937 71589 97853 293559 972539 2917617 6807773 20423319 47654411 142963233