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143860344817661 = 659385156686829
BaseRepresentation
bin100000101101011100011000…
…110000000000011111111101
3200212100220200210001220200122
4200231130120300000133331
5122324001441233131121
61225544310253504325
742205365311604203
oct4055343060003775
9625326623056618
10143860344817661
114192491424434a
12141751224a20a5
136236c84207564
142774c40b1b073
15119720eb885ab
hex82d718c007fd

143860344817661 has 8 divisors (see below), whose sum is σ = 144116061645600. Its totient is φ = 143604741372400.

The previous prime is 143860344817649. The next prime is 143860344817663. The reversal of 143860344817661 is 166718443068341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-143860344817661 is a prime.

It is a super-2 number, since 2×1438603448176612 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143860344817594 and 143860344817603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143860344817663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25805606 + ... + 30881223.

It is an arithmetic number, because the mean of its divisors is an integer number (18014507705700).

Almost surely, 2143860344817661 is an apocalyptic number.

It is an amenable number.

143860344817661 is a deficient number, since it is larger than the sum of its proper divisors (255716827939).

143860344817661 is an equidigital number, since it uses as much as digits as its factorization.

143860344817661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56691339.

The product of its (nonzero) digits is 55738368, while the sum is 62.

The spelling of 143860344817661 in words is "one hundred forty-three trillion, eight hundred sixty billion, three hundred forty-four million, eight hundred seventeen thousand, six hundred sixty-one".

Divisors: 1 659 3851 2537809 56686829 37356620311 218300978479 143860344817661