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1970120 = 23549253
BaseRepresentation
bin111100000111111001000
310201002111102
413200333020
51001020440
6110120532
722513535
oct7407710
93632442
101970120
1111261a9
127b0148
1353c969
14393d8c
1528db15
hex1e0fc8

1970120 has 16 divisors (see below), whose sum is σ = 4432860. Its totient is φ = 788032.

The previous prime is 1970119. The next prime is 1970123. The reversal of 1970120 is 210791.

It can be written as a sum of positive squares in 2 ways, for example, as 1811716 + 158404 = 1346^2 + 398^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1970092 and 1970101.

It is not an unprimeable number, because it can be changed into a prime (1970123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24587 + ... + 24666.

21970120 is an apocalyptic number.

1970120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1970120 is an abundant number, since it is smaller than the sum of its proper divisors (2462740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1970120 is a wasteful number, since it uses less digits than its factorization.

1970120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49264 (or 49260 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 1970120 is about 1403.6096323408. The cubic root of 1970120 is about 125.3615134562.

The spelling of 1970120 in words is "one million, nine hundred seventy thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 49253 98506 197012 246265 394024 492530 985060 1970120