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142908212 = 221512231061
BaseRepresentation
bin10001000010010…
…01101100110100
3100221220111012202
420201021230310
5243041030322
622103004032
73353462006
oct1041115464
9327814182
10142908212
1173739067
123ba39618
13237b7c95
1414da0376
15c82d292
hex8849b34

142908212 has 24 divisors (see below), whose sum is σ = 253112832. Its totient is φ = 70596000.

The previous prime is 142908211. The next prime is 142908217. The reversal of 142908212 is 212809241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142908211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134162 + ... + 135222.

It is an arithmetic number, because the mean of its divisors is an integer number (10546368).

Almost surely, 2142908212 is an apocalyptic number.

It is an amenable number.

142908212 is a deficient number, since it is larger than the sum of its proper divisors (110204620).

142908212 is a wasteful number, since it uses less digits than its factorization.

142908212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439 (or 1437 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 142908212 is about 11954.4222779689. The cubic root of 142908212 is about 522.8202436887.

The spelling of 142908212 in words is "one hundred forty-two million, nine hundred eight thousand, two hundred twelve".

Divisors: 1 2 4 151 223 302 446 604 892 1061 2122 4244 33673 67346 134692 160211 236603 320422 473206 640844 946412 35727053 71454106 142908212