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70000029 = 3211707071
BaseRepresentation
bin1000010110000…
…01110110011101
311212201100222200
410023001312131
5120410000104
610540202113
71506663501
oct413016635
9155640880
1070000029
1136571070
121b539339
131166b848
149422301
15622ab39
hex42c1d9d

70000029 has 12 divisors (see below), whose sum is σ = 110303232. Its totient is φ = 42424200.

The previous prime is 70000027. The next prime is 70000037. The reversal of 70000029 is 92000007.

It is not a de Polignac number, because 70000029 - 21 = 70000027 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 69999966 and 70000020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70000027) 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 11 ways as a sum of consecutive naturals, for example, 353437 + ... + 353634.

It is an arithmetic number, because the mean of its divisors is an integer number (9191936).

Almost surely, 270000029 is an apocalyptic number.

It is an amenable number.

70000029 is a deficient number, since it is larger than the sum of its proper divisors (40303203).

70000029 is a wasteful number, since it uses less digits than its factorization.

70000029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707088 (or 707085 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 70000029 is about 8366.6019984221. The cubic root of 70000029 is about 412.1285868938.

The spelling of 70000029 in words is "seventy million, twenty-nine", and thus it is an aban number and an uban number.

Divisors: 1 3 9 11 33 99 707071 2121213 6363639 7777781 23333343 70000029