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53142021430 = 2536911439773
BaseRepresentation
bin110001011111100000…
…101110010100110110
312002011120002101201221
4301133200232110312
51332313324141210
640225121540554
73560623505041
oct613740562466
9162146071657
1053142021430
11205a0316283
12a3711a475a
13501b9bb6c4
142801b45c58
1515b063e1da
hexc5f82e536

53142021430 has 16 divisors (see below), whose sum is σ = 95681620944. Its totient is φ = 21251034720.

The previous prime is 53142021421. The next prime is 53142021431. The reversal of 53142021430 is 3412024135.

It is a junction number, because it is equal to n+sod(n) for n = 53142021395 and 53142021404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53142021431) 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 7 ways as a sum of consecutive naturals, for example, 682977 + ... + 756796.

It is an arithmetic number, because the mean of its divisors is an integer number (5980101309).

Almost surely, 253142021430 is an apocalyptic number.

53142021430 is a deficient number, since it is larger than the sum of its proper divisors (42539599514).

53142021430 is a wasteful number, since it uses less digits than its factorization.

53142021430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443471.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 53142021430 its reverse (3412024135), we get a palindrome (56554045565).

The spelling of 53142021430 in words is "fifty-three billion, one hundred forty-two million, twenty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 3691 7382 18455 36910 1439773 2879546 7198865 14397730 5314202143 10628404286 26571010715 53142021430