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142214020400 = 2452439478731
BaseRepresentation
bin1000010001110010011…
…1011011110100110000
3111121002010202202202202
42010130213123310300
54312223242123100
6145155432002332
713163124141164
oct2043447336460
9447063682682
10142214020400
115534911a471
122368b2303a8
131054549213a
146c516b8ca4
153a752ac7d5
hex211c9dbd30

142214020400 has 120 divisors (see below), whose sum is σ = 350024245824. Its totient is φ = 55497657600.

The previous prime is 142214020397. The next prime is 142214020409. The reversal of 142214020400 is 4020412241.

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

It is not an unprimeable number, because it can be changed into a prime (142214020409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16284035 + ... + 16292765.

Almost surely, 2142214020400 is an apocalyptic number.

142214020400 is a gapful number since it is divisible by the number (10) 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 142214020400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175012122912).

142214020400 is an abundant number, since it is smaller than the sum of its proper divisors (207810225424).

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

142214020400 is a wasteful number, since it uses less digits than its factorization.

142214020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9739 (or 9728 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 142214020400 its reverse (4020412241), we get a palindrome (146234432641).

The spelling of 142214020400 in words is "one hundred forty-two billion, two hundred fourteen million, twenty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 43 50 80 86 100 172 200 215 344 400 430 688 860 947 1075 1720 1894 2150 3440 3788 4300 4735 7576 8600 8731 9470 15152 17200 17462 18940 23675 34924 37880 40721 43655 47350 69848 75760 81442 87310 94700 139696 162884 174620 189400 203605 218275 325768 349240 375433 378800 407210 436550 651536 698480 750866 814420 873100 1018025 1501732 1628840 1746200 1877165 2036050 3003464 3257680 3492400 3754330 4072100 6006928 7508660 8144200 8268257 9385825 15017320 16288400 16536514 18771650 30034640 33073028 37543300 41341285 66146056 75086600 82682570 132292112 150173200 165365140 206706425 330730280 355535051 413412850 661460560 711070102 826825700 1422140204 1653651400 1777675255 2844280408 3307302800 3555350510 5688560816 7110701020 8888376275 14221402040 17776752550 28442804080 35553505100 71107010200 142214020400