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87346400 = 2552412663
BaseRepresentation
bin1010011010011…
…00110011100000
320002100122201212
411031030303200
5134330041100
612400045252
72110301141
oct515146340
9202318655
1087346400
1145339709
1225303828
131513317b
14b859ac8
157a05635
hex534cce0

87346400 has 72 divisors (see below), whose sum is σ = 218517264. Its totient is φ = 34073600.

The previous prime is 87346397. The next prime is 87346411. The reversal of 87346400 is 464378.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31469 + ... + 34131.

It is an arithmetic number, because the mean of its divisors is an integer number (3034962).

Almost surely, 287346400 is an apocalyptic number.

87346400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87346400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109258632).

87346400 is an abundant number, since it is smaller than the sum of its proper divisors (131170864).

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

87346400 is a wasteful number, since it uses less digits than its factorization.

87346400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 87346400 is about 9345.9295952837. The cubic root of 87346400 is about 443.6920733750.

The spelling of 87346400 in words is "eighty-seven million, three hundred forty-six thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 41 50 80 82 100 160 164 200 205 328 400 410 656 800 820 1025 1312 1640 2050 2663 3280 4100 5326 6560 8200 10652 13315 16400 21304 26630 32800 42608 53260 66575 85216 106520 109183 133150 213040 218366 266300 426080 436732 532600 545915 873464 1065200 1091830 1746928 2130400 2183660 2729575 3493856 4367320 5459150 8734640 10918300 17469280 21836600 43673200 87346400