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1201201330 = 25731553549
BaseRepresentation
bin100011110011000…
…1110000010110010
310002201021100110011
41013212032002302
54430001420310
6315105525134
741524020460
oct10746160262
93081240404
101201201330
1156705737a
122963437aa
13161b25224
14b5763830
15706c678a
hex4798e0b2

1201201330 has 32 divisors (see below), whose sum is σ = 2550758400. Its totient is φ = 398554560.

The previous prime is 1201201301. The next prime is 1201201357. The reversal of 1201201330 is 331021021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201201330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274605 + ... + 278944.

It is an arithmetic number, because the mean of its divisors is an integer number (79711200).

Almost surely, 21201201330 is an apocalyptic number.

1201201330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201201330 is an abundant number, since it is smaller than the sum of its proper divisors (1349557070).

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

1201201330 is a wasteful number, since it uses less digits than its factorization.

1201201330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553594.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1201201330 is about 34658.3515187898. The cubic root of 1201201330 is about 1063.0130630297.

Adding to 1201201330 its reverse (331021021), we get a palindrome (1532222351).

The spelling of 1201201330 in words is "one billion, two hundred one million, two hundred one thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 31 35 62 70 155 217 310 434 1085 2170 553549 1107098 2767745 3874843 5535490 7749686 17160019 19374215 34320038 38748430 85800095 120120133 171600190 240240266 600600665 1201201330