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245808751452 = 223111998009869
BaseRepresentation
bin1110010011101101010…
…1111110001101011100
3212111110211112100222120
43210323111332031130
513011404020021302
6304531210342540
723521240625145
oct3447325761534
9774424470876
10245808751452
11952796a5180
123b780a2aa50
131a244958674
14bc7bd16acc
1565d9db79bc
hex393b57e35c

245808751452 has 48 divisors (see below), whose sum is σ = 658626326400. Its totient is φ = 70567104960.

The previous prime is 245808751451. The next prime is 245808751469. The reversal of 245808751452 is 254157808542.

It is a happy number.

It is a super-4 number, since 4×2458087514524 (a number of 47 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 245808751395 and 245808751404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245808751451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49002427 + ... + 49007442.

It is an arithmetic number, because the mean of its divisors is an integer number (13721381800).

Almost surely, 2245808751452 is an apocalyptic number.

245808751452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

245808751452 is an abundant number, since it is smaller than the sum of its proper divisors (412817574948).

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

245808751452 is a wasteful number, since it uses less digits than its factorization.

245808751452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98009906 (or 98009904 counting only the distinct ones).

The product of its (nonzero) digits is 3584000, while the sum is 51.

The spelling of 245808751452 in words is "two hundred forty-five billion, eight hundred eight million, seven hundred fifty-one thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 132 209 228 418 627 836 1254 2508 98009869 196019738 294029607 392039476 588059214 1078108559 1176118428 1862187511 2156217118 3234325677 3724375022 4312434236 5586562533 6468651354 7448750044 11173125066 12937302708 20484062621 22346250132 40968125242 61452187863 81936250484 122904375726 245808751452