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64150758400 = 2105215832
BaseRepresentation
bin111011101111101011…
…101110010000000000
320010120202222011211211
4323233223232100000
52022340043232100
645245341215504
74430500310101
oct735753562000
9203522864754
1064150758400
112522a481303
1210523b61594
136084684a51
143167c4c3a8
151a06d571ba
hexeefaee400

64150758400 has 99 divisors (see below), whose sum is σ = 159116714161. Its totient is φ = 25644093440.

The previous prime is 64150758367. The next prime is 64150758409. The reversal of 64150758400 is 485705146.

The square root of 64150758400 is 253280.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 23094273024 + 41056485376 = 151968^2 + 202624^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64150758409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 40524009 + ... + 40525591.

Almost surely, 264150758400 is an apocalyptic number.

64150758400 is the 253280-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64150758400

64150758400 is an abundant number, since it is smaller than the sum of its proper divisors (94965955761).

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

64150758400 is an frugal number, since it uses more digits than its factorization.

64150758400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 64150758400 in words is "sixty-four billion, one hundred fifty million, seven hundred fifty-eight thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 512 640 800 1024 1280 1583 1600 2560 3166 3200 5120 6332 6400 7915 12664 12800 15830 25328 25600 31660 39575 50656 63320 79150 101312 126640 158300 202624 253280 316600 405248 506560 633200 810496 1013120 1266400 1620992 2026240 2505889 2532800 4052480 5011778 5065600 8104960 10023556 10131200 12529445 20047112 20262400 25058890 40094224 40524800 50117780 62647225 80188448 100235560 125294450 160376896 200471120 250588900 320753792 400942240 501177800 641507584 801884480 1002355600 1283015168 1603768960 2004711200 2566030336 3207537920 4009422400 6415075840 8018844800 12830151680 16037689600 32075379200 64150758400