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426254025220 = 225193771426997
BaseRepresentation
bin1100011001111101011…
…10000100001000000100
31111202020101011001000021
412030332232010020010
523440432012301340
6523452435024524
742536654301412
oct6147656041004
91452211131007
10426254025220
11154856315101
126a73b73b144
13312709035ca
14168b8d002b2
15b14b728e4a
hex633eb84204

426254025220 has 96 divisors (see below), whose sum is σ = 981343883520. Its totient is φ = 154948308480.

The previous prime is 426254025217. The next prime is 426254025221. The reversal of 426254025220 is 22520452624.

It is not an unprimeable number, because it can be changed into a prime (426254025221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 784762 + ... + 1211758.

It is an arithmetic number, because the mean of its divisors is an integer number (10222332120).

Almost surely, 2426254025220 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 426254025220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490671941760).

426254025220 is an abundant number, since it is smaller than the sum of its proper divisors (555089858300).

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

426254025220 is a wasteful number, since it uses less digits than its factorization.

426254025220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427133 (or 427131 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 426254025220 its reverse (22520452624), we get a palindrome (448774477844).

The spelling of 426254025220 in words is "four hundred twenty-six billion, two hundred fifty-four million, twenty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 37 38 71 74 76 95 142 148 185 190 284 355 370 380 703 710 740 1349 1406 1420 2627 2698 2812 3515 5254 5396 6745 7030 10508 13135 13490 14060 26270 26980 49913 52540 99826 199652 249565 426997 499130 853994 998260 1707988 2134985 4269970 8112943 8539940 15798889 16225886 30316787 31597778 32451772 40564715 60633574 63195556 78994445 81129430 121267148 151583935 157988890 162258860 300178891 303167870 315977780 576018953 600357782 606335740 1121721119 1152037906 1200715564 1500894455 2243442238 2304075812 2880094765 3001788910 4486884476 5608605595 5760189530 6003577820 11217211190 11520379060 21312701261 22434422380 42625402522 85250805044 106563506305 213127012610 426254025220