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1972194 = 23746957
BaseRepresentation
bin111100001011111100010
310201012100020
413201133202
51001102234
6110134310
722522560
oct7413742
93635306
101972194
111127814
127b1396
135408a3
14394a30
1528e549
hex1e17e2

1972194 has 16 divisors (see below), whose sum is σ = 4507968. Its totient is φ = 563472.

The previous prime is 1972177. The next prime is 1972207. The reversal of 1972194 is 4912791.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23437 + ... + 23520.

It is an arithmetic number, because the mean of its divisors is an integer number (281748).

21972194 is an apocalyptic number.

1972194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1972194 is an abundant number, since it is smaller than the sum of its proper divisors (2535774).

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

1972194 is a wasteful number, since it uses less digits than its factorization.

1972194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46969.

The product of its digits is 4536, while the sum is 33.

The square root of 1972194 is about 1404.3482474087. The cubic root of 1972194 is about 125.4054885434.

The spelling of 1972194 in words is "one million, nine hundred seventy-two thousand, one hundred ninety-four".

Divisors: 1 2 3 6 7 14 21 42 46957 93914 140871 281742 328699 657398 986097 1972194