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71922484 = 2253339257
BaseRepresentation
bin1000100100101…
…11001100110100
312000100001002201
410102113030310
5121403004414
611045314244
71532221354
oct422271464
9160301081
1071922484
1137664477
1220105984
1311b928aa
1497a2b64
1564aa574
hex4497334

71922484 has 12 divisors (see below), whose sum is σ = 128239524. Its totient is φ = 35282624.

The previous prime is 71922481. The next prime is 71922517. The reversal of 71922484 is 48422917.

It can be written as a sum of positive squares in 2 ways, for example, as 25300900 + 46621584 = 5030^2 + 6828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71922481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169417 + ... + 169840.

It is an arithmetic number, because the mean of its divisors is an integer number (10686627).

Almost surely, 271922484 is an apocalyptic number.

It is an amenable number.

71922484 is a deficient number, since it is larger than the sum of its proper divisors (56317040).

71922484 is a wasteful number, since it uses less digits than its factorization.

71922484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339314 (or 339312 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 71922484 is about 8480.7124700700. The cubic root of 71922484 is about 415.8674149100.

The spelling of 71922484 in words is "seventy-one million, nine hundred twenty-two thousand, four hundred eighty-four".

Divisors: 1 2 4 53 106 212 339257 678514 1357028 17980621 35961242 71922484