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142312102400 = 295213855241
BaseRepresentation
bin1000010010001001110…
…1100101101000000000
3111121022222022211222102
42010202131211220000
54312423344234100
6145213254125532
713165424624426
oct2044235455000
9447288284872
10142312102400
1155399520976
12236b80508a8
131055c8b3920
146c6072b116
153a7dbd3cd5
hex2122765a00

142312102400 has 120 divisors (see below), whose sum is σ = 379712053644. Its totient is φ = 52545945600.

The previous prime is 142312102393. The next prime is 142312102421. The reversal of 142312102400 is 4201213241.

It can be written as a sum of positive squares in 6 ways, for example, as 49184594176 + 93127508224 = 221776^2 + 305168^2 .

It is a super-4 number, since 4×1423121024004 (a number of 46 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261221 + ... + 594020.

Almost surely, 2142312102400 is an apocalyptic number.

142312102400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142312102400 is an abundant number, since it is smaller than the sum of its proper divisors (237399951244).

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

142312102400 is an equidigital number, since it uses as much as digits as its factorization.

142312102400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855282 (or 855261 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 142312102400 its reverse (4201213241), we get a palindrome (146513315641).

The spelling of 142312102400 in words is "one hundred forty-two billion, three hundred twelve million, one hundred two thousand, four hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 128 130 160 200 208 256 260 320 325 400 416 512 520 640 650 800 832 1040 1280 1300 1600 1664 2080 2560 2600 3200 3328 4160 5200 6400 6656 8320 10400 12800 16640 20800 33280 41600 83200 166400 855241 1710482 3420964 4276205 6841928 8552410 11118133 13683856 17104820 21381025 22236266 27367712 34209640 42762050 44472532 54735424 55590665 68419280 85524100 88945064 109470848 111181330 136838560 171048200 177890128 218941696 222362660 273677120 277953325 342096400 355780256 437883392 444725320 547354240 555906650 684192800 711560512 889450640 1094708480 1111813300 1368385600 1423121024 1778901280 2189416960 2223626600 2736771200 2846242048 3557802560 4447253200 5473542400 5692484096 7115605120 8894506400 10947084800 14231210240 17789012800 28462420480 35578025600 71156051200 142312102400