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245213012 = 2211191372141
BaseRepresentation
bin11101001110110…
…10011101010100
3122002102010000102
432213122131110
51000233304022
640155433232
76035163512
oct1647323524
9562363012
10245213012
11116464190
126a155818
133ba57875
14247d14b2
15167daa92
hexe9da754

245213012 has 48 divisors (see below), whose sum is σ = 496601280. Its totient is φ = 104774400.

The previous prime is 245212999. The next prime is 245213021. The reversal of 245213012 is 210312542.

It is a super-2 number, since 2×2452130122 = 120258842508224288, which contains 22 as substring.

It is a congruent number.

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, 113462 + ... + 115602.

It is an arithmetic number, because the mean of its divisors is an integer number (10345860).

Almost surely, 2245213012 is an apocalyptic number.

245213012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

245213012 is an abundant number, since it is smaller than the sum of its proper divisors (251388268).

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

245213012 is a wasteful number, since it uses less digits than its factorization.

245213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312 (or 2310 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 245213012 is about 15659.2787828814. The cubic root of 245213012 is about 625.9137669701.

Adding to 245213012 its reverse (210312542), we get a palindrome (455525554).

The spelling of 245213012 in words is "two hundred forty-five million, two hundred thirteen thousand, twelve".

Divisors: 1 2 4 11 19 22 38 44 76 137 209 274 418 548 836 1507 2141 2603 3014 4282 5206 6028 8564 10412 23551 28633 40679 47102 57266 81358 94204 114532 162716 293317 447469 586634 894938 1173268 1789876 3226487 5573023 6452974 11146046 12905948 22292092 61303253 122606506 245213012