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1242352452 = 22311172324071
BaseRepresentation
bin100101000001100…
…1100101101000100
310012120201001011210
41022003030231010
510021020234302
6323135531420
742533551545
oct11203145504
93176631153
101242352452
11588303870
122a8089b70
1316a5029c3
14badd64cc
157410466c
hex4a0ccb44

1242352452 has 96 divisors (see below), whose sum is σ = 3494098944. Its totient is φ = 338905600.

The previous prime is 1242352451. The next prime is 1242352477. The reversal of 1242352452 is 2542532421.

It is a super-2 number, since 2×12423524522 = 3086879229980824608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1242352451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39577 + ... + 63647.

It is an arithmetic number, because the mean of its divisors is an integer number (36396864).

Almost surely, 21242352452 is an apocalyptic number.

1242352452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242352452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1747049472).

1242352452 is an abundant number, since it is smaller than the sum of its proper divisors (2251746492).

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

1242352452 is a wasteful number, since it uses less digits than its factorization.

1242352452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24129 (or 24127 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 1242352452 is about 35247.0204698213. The cubic root of 1242352452 is about 1075.0160306245.

Adding to 1242352452 its reverse (2542532421), we get a palindrome (3784884873).

The spelling of 1242352452 in words is "one billion, two hundred forty-two million, three hundred fifty-two thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 17 22 23 33 34 44 46 51 66 68 69 92 102 132 138 187 204 253 276 374 391 506 561 748 759 782 1012 1122 1173 1518 1564 2244 2346 3036 4301 4692 8602 12903 17204 24071 25806 48142 51612 72213 96284 144426 264781 288852 409207 529562 553633 794343 818414 1059124 1107266 1227621 1588686 1636828 1660899 2214532 2455242 3177372 3321798 4501277 4910484 6089963 6643596 9002554 9411761 12179926 13503831 18005108 18269889 18823522 24359852 27007662 28235283 36539778 37647044 54015324 56470566 73079556 103529371 112941132 207058742 310588113 414117484 621176226 1242352452