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103247257142 = 2311665278341
BaseRepresentation
bin110000000101000000…
…1000001111000110110
3100212111110221002121202
41200022001001320312
53142422244212032
6115233043012502
710313364130331
oct1401201017066
9325443832552
10103247257142
113a872426497
121801536a132
1399754b6083
144dd642b618
152a4436ed62
hex180a041e36

103247257142 has 8 divisors (see below), whose sum is σ = 159866720832. Its totient is φ = 49958350200.

The previous prime is 103247257123. The next prime is 103247257147. The reversal of 103247257142 is 241752742301.

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

It is a super-2 number, since 2×1032472571422 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103247257096 and 103247257105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103247257147) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 832639109 + ... + 832639232.

It is an arithmetic number, because the mean of its divisors is an integer number (19983340104).

Almost surely, 2103247257142 is an apocalyptic number.

103247257142 is a deficient number, since it is larger than the sum of its proper divisors (56619463690).

103247257142 is a wasteful number, since it uses less digits than its factorization.

103247257142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665278374.

The product of its (nonzero) digits is 94080, while the sum is 38.

Adding to 103247257142 its reverse (241752742301), we get a palindrome (344999999443).

The spelling of 103247257142 in words is "one hundred three billion, two hundred forty-seven million, two hundred fifty-seven thousand, one hundred forty-two".

Divisors: 1 2 31 62 1665278341 3330556682 51623628571 103247257142