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1220241002 = 25581109321
BaseRepresentation
bin100100010111011…
…0110011001101010
310011001002122222012
41020232312121222
54444340203002
6321025555522
742144606641
oct11056663152
93131078865
101220241002
11576881142
122a07a5ba2
13165a604c6
14b80bc358
15721d7d52
hex48bb666a

1220241002 has 8 divisors (see below), whose sum is σ = 1830706212. Its totient is φ = 610005600.

The previous prime is 1220240993. The next prime is 1220241007. The reversal of 1220241002 is 2001420221.

It can be written as a sum of positive squares in 2 ways, for example, as 1197782881 + 22458121 = 34609^2 + 4739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1220241007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43499 + ... + 65822.

Almost surely, 21220241002 is an apocalyptic number.

1220241002 is a deficient number, since it is larger than the sum of its proper divisors (610465210).

1220241002 is a wasteful number, since it uses less digits than its factorization.

1220241002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114904.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1220241002 is about 34931.9481563797. The cubic root of 1220241002 is about 1068.6000855715.

Adding to 1220241002 its reverse (2001420221), we get a palindrome (3221661223).

The spelling of 1220241002 in words is "one billion, two hundred twenty million, two hundred forty-one thousand, two".

Divisors: 1 2 5581 11162 109321 218642 610120501 1220241002