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1970129 = 71914813
BaseRepresentation
bin111100000111111010001
310201002111202
413200333101
51001021004
6110120545
722513550
oct7407721
93632452
101970129
111126207
127b0155
1353c975
14393d97
1528db1e
hex1e0fd1

1970129 has 8 divisors (see below), whose sum is σ = 2370240. Its totient is φ = 1599696.

The previous prime is 1970123. The next prime is 1970149. The reversal of 1970129 is 9210791.

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

It is a de Polignac number, because none of the positive numbers 2k-1970129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970123) 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, 7274 + ... + 7539.

It is an arithmetic number, because the mean of its divisors is an integer number (296280).

21970129 is an apocalyptic number.

1970129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1970129 is a deficient number, since it is larger than the sum of its proper divisors (400111).

1970129 is a wasteful number, since it uses less digits than its factorization.

1970129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14839.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 1970129 is about 1403.6128383568. The cubic root of 1970129 is about 125.3617043502.

The spelling of 1970129 in words is "one million, nine hundred seventy thousand, one hundred twenty-nine".

Divisors: 1 7 19 133 14813 103691 281447 1970129