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69128000206 = 234564000103
BaseRepresentation
bin100000001100001011…
…0011001001011001110
320121102122112021000221
41000120112121023032
52113033232001311
651431300541554
74665025210126
oct1003026311316
9217378467027
1069128000206
1127353a54791
12114929b18ba
1366988a5945
1434baca7c86
151be8cb5671
hex10185992ce

69128000206 has 4 divisors (see below), whose sum is σ = 103692000312. Its totient is φ = 34564000102.

The previous prime is 69128000197. The next prime is 69128000251. The reversal of 69128000206 is 60200082196.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17282000050 + ... + 17282000053.

It is an arithmetic number, because the mean of its divisors is an integer number (25923000078).

Almost surely, 269128000206 is an apocalyptic number.

69128000206 is the 166287-th centered pentagonal number.

69128000206 is a deficient number, since it is larger than the sum of its proper divisors (34564000106).

69128000206 is a wasteful number, since it uses less digits than its factorization.

69128000206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34564000105.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 69128000206 in words is "sixty-nine billion, one hundred twenty-eight million, two hundred six", and thus it is an aban number.

Divisors: 1 2 34564000103 69128000206