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213220411442 = 2197376863883
BaseRepresentation
bin1100011010010011101…
…1010100100000110010
3202101100200211011121122
43012210323110200302
511443133411131232
6241541353222242
721255541410413
oct3064473244062
9671320734548
10213220411442
11824763aaa75
12353a7101982
131715027393c
14a469c2380a
15582de13312
hex31a4ed4832

213220411442 has 16 divisors (see below), whose sum is σ = 341275644960. Its totient is φ = 99615591072.

The previous prime is 213220411421. The next prime is 213220411471. The reversal of 213220411442 is 244114022312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38429168 + ... + 38434715.

It is an arithmetic number, because the mean of its divisors is an integer number (21329727810).

Almost surely, 2213220411442 is an apocalyptic number.

213220411442 is a deficient number, since it is larger than the sum of its proper divisors (128055233518).

213220411442 is a wasteful number, since it uses less digits than its factorization.

213220411442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76863977.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 213220411442 its reverse (244114022312), we get a palindrome (457334433754).

The spelling of 213220411442 in words is "two hundred thirteen billion, two hundred twenty million, four hundred eleven thousand, four hundred forty-two".

Divisors: 1 2 19 38 73 146 1387 2774 76863883 153727766 1460413777 2920827554 5611063459 11222126918 106610205721 213220411442