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4285157888 = 291122632
BaseRepresentation
bin1111111101101010…
…0101001000000000
3102001122021120112102
43333122211020000
532234000023023
61545113445532
7211122145454
oct37732451000
912048246472
104285157888
1118a9950600
129b71108a8
13533a239ab
142c9182664
151a1301628
hexff6a5200

4285157888 has 90 divisors (see below), whose sum is σ = 9446984547. Its totient is φ = 1940392960.

The previous prime is 4285157881. The next prime is 4285157911. The reversal of 4285157888 is 8887515824.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 2142578944 + 2142578944 = 46288^2 + 46288^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=46288.

It is not an unprimeable number, because it can be changed into a prime (4285157881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16293245 + ... + 16293507.

Almost surely, 24285157888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4285157888

4285157888 is an abundant number, since it is smaller than the sum of its proper divisors (5161826659).

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

4285157888 is an frugal number, since it uses more digits than its factorization.

4285157888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 276 counting only the distinct ones).

The product of its digits is 5734400, while the sum is 56.

The square root of 4285157888 is about 65461.1173751258. The cubic root of 4285157888 is about 1624.2602250703.

The spelling of 4285157888 in words is "four billion, two hundred eighty-five million, one hundred fifty-seven thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 121 128 176 242 256 263 352 484 512 526 704 968 1052 1408 1936 2104 2816 2893 3872 4208 5632 5786 7744 8416 11572 15488 16832 23144 30976 31823 33664 46288 61952 63646 67328 69169 92576 127292 134656 138338 185152 254584 276676 370304 509168 553352 740608 760859 1018336 1106704 1481216 1521718 2036672 2213408 3043436 4073344 4426816 6086872 8146688 8369449 8853632 12173744 16293376 16738898 17707264 24347488 33477796 35414528 48694976 66955592 97389952 133911184 194779904 267822368 389559808 535644736 1071289472 2142578944 4285157888