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1220030010 = 232599113679
BaseRepresentation
bin100100010111000…
…0010111000111010
310011000200221112200
41020232002320322
54444311430020
6321021251030
742143040543
oct11056027072
93130627480
101220030010
11576747671
122a0703a76
131659b8464
14b80654ca
1572195590
hex48b82e3a

1220030010 has 48 divisors (see below), whose sum is σ = 3175511040. Its totient is φ = 324989280.

The previous prime is 1220029997. The next prime is 1220030011. The reversal of 1220030010 is 100300221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1220029974 and 1220030001.

It is not an unprimeable number, because it can be changed into a prime (1220030011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82351 + ... + 96029.

It is an arithmetic number, because the mean of its divisors is an integer number (66156480).

Almost surely, 21220030010 is an apocalyptic number.

1220030010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220030010 is an abundant number, since it is smaller than the sum of its proper divisors (1955481030).

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

1220030010 is a wasteful number, since it uses less digits than its factorization.

1220030010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14683 (or 14680 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1220030010 is about 34928.9279824045. The cubic root of 1220030010 is about 1068.5384914369.

Adding to 1220030010 its reverse (100300221), we get a palindrome (1320330231).

The spelling of 1220030010 in words is "one billion, two hundred twenty million, thirty thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 991 1982 2973 4955 5946 8919 9910 13679 14865 17838 27358 29730 41037 44595 68395 82074 89190 123111 136790 205185 246222 410370 615555 1231110 13555889 27111778 40667667 67779445 81335334 122003001 135558890 203338335 244006002 406676670 610015005 1220030010