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157157222143 = 1723563392333
BaseRepresentation
bin1001001001011101001…
…1001110011011111111
3120000122120001001220011
42102113103032123333
510033324222102033
6200110320404051
714232334230055
oct2222723163377
9500576031804
10157157222143
1160717178079
122655b776627
1311a8731264c
14786c1561d5
15414c102ccd
hex24974ce6ff

157157222143 has 8 divisors (see below), whose sum is σ = 166409250768. Its totient is φ = 147906025344.

The previous prime is 157157222099. The next prime is 157157222207. The reversal of 157157222143 is 341222751751.

It is a happy number.

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

It is not a de Polignac number, because 157157222143 - 233 = 148567287551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157157222096 and 157157222105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157157222843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204405 + ... + 596737.

It is an arithmetic number, because the mean of its divisors is an integer number (20801156346).

Almost surely, 2157157222143 is an apocalyptic number.

157157222143 is a deficient number, since it is larger than the sum of its proper divisors (9252028625).

157157222143 is a wasteful number, since it uses less digits than its factorization.

157157222143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415913.

The product of its digits is 117600, while the sum is 40.

Adding to 157157222143 its reverse (341222751751), we get a palindrome (498379973894).

The spelling of 157157222143 in words is "one hundred fifty-seven billion, one hundred fifty-seven million, two hundred twenty-two thousand, one hundred forty-three".

Divisors: 1 17 23563 392333 400571 6669661 9244542479 157157222143