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1970308 = 221014877
BaseRepresentation
bin111100001000010000100
310201002202101
413201002010
51001022213
6110121444
722514224
oct7410204
93632671
101970308
11112635a
127b0284
1353ca82
14394084
1528dbdd
hex1e1084

1970308 has 12 divisors (see below), whose sum is σ = 3482892. Its totient is φ = 975200.

The previous prime is 1970291. The next prime is 1970327. The reversal of 1970308 is 8030791.

It can be written as a sum of positive squares in 2 ways, for example, as 1327104 + 643204 = 1152^2 + 802^2 .

It is a super-2 number, since 2×19703082 = 7764227229728, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035 + ... + 2842.

It is an arithmetic number, because the mean of its divisors is an integer number (290241).

21970308 is an apocalyptic number.

It is an amenable number.

1970308 is a deficient number, since it is larger than the sum of its proper divisors (1512584).

1970308 is a wasteful number, since it uses less digits than its factorization.

1970308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4982 (or 4980 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1970308 is about 1403.6766009306. The cubic root of 1970308 is about 125.3655008978.

It can be divided in two parts, 1970 and 308, that added together give a triangular number (2278 = T67).

The spelling of 1970308 in words is "one million, nine hundred seventy thousand, three hundred eight".

Divisors: 1 2 4 101 202 404 4877 9754 19508 492577 985154 1970308