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87422460 = 22354393319
BaseRepresentation
bin1010011010111…
…11010111111100
320002111112001220
411031133113330
5134340004320
612401433340
72111035656
oct515372774
9202445056
1087422460
1145390874
122533b850
131515b988
14b8796d6
157a1ce40
hex535f5fc

87422460 has 48 divisors (see below), whose sum is σ = 245414400. Its totient is φ = 23252544.

The previous prime is 87422441. The next prime is 87422479. The reversal of 87422460 is 6422478.

It is an interprime number because it is at equal distance from previous prime (87422441) and next prime (87422479).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24681 + ... + 27999.

It is an arithmetic number, because the mean of its divisors is an integer number (5112800).

Almost surely, 287422460 is an apocalyptic number.

It is an amenable number.

87422460 is an abundant number, since it is smaller than the sum of its proper divisors (157991940).

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

87422460 is a wasteful number, since it uses less digits than its factorization.

87422460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770 (or 3768 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 87422460 is about 9349.9978609623. The cubic root of 87422460 is about 443.8208229220.

The spelling of 87422460 in words is "eighty-seven million, four hundred twenty-two thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 439 878 1317 1756 2195 2634 3319 4390 5268 6585 6638 8780 9957 13170 13276 16595 19914 26340 33190 39828 49785 66380 99570 199140 1457041 2914082 4371123 5828164 7285205 8742246 14570410 17484492 21855615 29140820 43711230 87422460