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10212247142 = 249991021429
BaseRepresentation
bin10011000001011001…
…01000011001100110
3222100201010220110122
421200230220121212
5131403313402032
64405203521542
7511032445166
oct114054503146
928321126418
1010212247142
114370602479
121b900892b2
13c699720b6
146cc4125a6
153eb836012
hex260b28666

10212247142 has 8 divisors (see below), whose sum is σ = 15321450000. Its totient is φ = 5105097144.

The previous prime is 10212247127. The next prime is 10212247151. The reversal of 10212247142 is 24174221201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500717 + ... + 520712.

It is an arithmetic number, because the mean of its divisors is an integer number (1915181250).

Almost surely, 210212247142 is an apocalyptic number.

10212247142 is a deficient number, since it is larger than the sum of its proper divisors (5109202858).

10212247142 is a wasteful number, since it uses less digits than its factorization.

10212247142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026430.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 10212247142 its reverse (24174221201), we get a palindrome (34386468343).

The spelling of 10212247142 in words is "ten billion, two hundred twelve million, two hundred forty-seven thousand, one hundred forty-two".

Divisors: 1 2 4999 9998 1021429 2042858 5106123571 10212247142