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1219135230143 = 29101868947903
BaseRepresentation
bin10001101111011010000…
…111110101000010111111
311022112210122000111222222
4101233122013311002333
5124433242104331033
62332021334555555
7154036210322015
oct21573207650277
94275718014888
101219135230143
1143003a066786
12178339b08bbb
138ac6ba826ac
1443013a248b5
1521aa4a88598
hex11bda1f50bf

1219135230143 has 16 divisors (see below), whose sum is σ = 1273834425600. Its totient is φ = 1165283212800.

The previous prime is 1219135230121. The next prime is 1219135230191. The reversal of 1219135230143 is 3410325319121.

It is a cyclic number.

It is not a de Polignac number, because 1219135230143 - 212 = 1219135226047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219135230113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25426130 + ... + 25474032.

It is an arithmetic number, because the mean of its divisors is an integer number (79614651600).

Almost surely, 21219135230143 is an apocalyptic number.

1219135230143 is a deficient number, since it is larger than the sum of its proper divisors (54699195457).

1219135230143 is a wasteful number, since it uses less digits than its factorization.

1219135230143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56722.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 1219135230143 in words is "one trillion, two hundred nineteen billion, one hundred thirty-five million, two hundred thirty thousand, one hundred forty-three".

Divisors: 1 29 101 2929 8689 47903 251981 877589 1389187 4838203 25450081 140307887 416229167 12070645843 42039145867 1219135230143