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1203041213 = 11678918341
BaseRepresentation
bin100011110110100…
…1111001110111101
310002211201211021222
41013231033032331
54430434304323
6315213203125
741545452533
oct10755171675
93084654258
101203041213
115680a3740
12296a904a5
1316231a80a
14b5ac2153
157093b9c8
hex47b4f3bd

1203041213 has 16 divisors (see below), whose sum is σ = 1347036480. Its totient is φ = 1065187200.

The previous prime is 1203041209. The next prime is 1203041219. The reversal of 1203041213 is 3121403021.

It is not a de Polignac number, because 1203041213 - 22 = 1203041209 is a prime.

It is a super-2 number, since 2×12030412132 = 2894616320353022738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203041191 and 1203041200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203041219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56423 + ... + 74763.

It is an arithmetic number, because the mean of its divisors is an integer number (84189780).

Almost surely, 21203041213 is an apocalyptic number.

It is an amenable number.

1203041213 is a deficient number, since it is larger than the sum of its proper divisors (143995267).

1203041213 is a wasteful number, since it uses less digits than its factorization.

1203041213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18508.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1203041213 is about 34684.8845031953. The cubic root of 1203041213 is about 1063.5555260583. Note that the first 4 decimals are identical.

Adding to 1203041213 its reverse (3121403021), we get a palindrome (4324444234).

The spelling of 1203041213 in words is "one billion, two hundred three million, forty-one thousand, two hundred thirteen".

Divisors: 1 11 67 89 737 979 5963 18341 65593 201751 1228847 1632349 13517317 17955839 109367383 1203041213