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1229281419054 = 2313431907192193
BaseRepresentation
bin10001111000110110111…
…000011101111100101110
311100111222201212022121110
4101320312320131330232
5130120032020402204
62340420223012450
7154545511441503
oct21706670357456
94314881768543
101229281419054
1143437634a677
1217a2aba3a126
138bbc7b36180
14436d735d4aa
1521e9a6c1889
hex11e36e1df2e

1229281419054 has 64 divisors (see below), whose sum is σ = 2710691875584. Its totient is φ = 369248495616.

The previous prime is 1229281419043. The next prime is 1229281419073. The reversal of 1229281419054 is 4509141829221.

It is a super-2 number, since 2×12292814190542 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1229281418994 and 1229281419012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6299982 + ... + 6492174.

It is an arithmetic number, because the mean of its divisors is an integer number (42354560556).

Almost surely, 21229281419054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1229281419054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1355345937792).

1229281419054 is an abundant number, since it is smaller than the sum of its proper divisors (1481410456530).

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

1229281419054 is a wasteful number, since it uses less digits than its factorization.

1229281419054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194161.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 1229281419054 in words is "one trillion, two hundred twenty-nine billion, two hundred eighty-one million, four hundred nineteen thousand, fifty-four".

Divisors: 1 2 3 6 13 26 39 43 78 86 129 258 559 1118 1677 1907 3354 3814 5721 11442 24791 49582 74373 82001 148746 164002 192193 246003 384386 492006 576579 1066013 1153158 2132026 2498509 3198039 4997018 6396078 7495527 8264299 14991054 16528598 24792897 49585794 107435887 214871774 322307661 366512051 644615322 733024102 1099536153 2199072306 4764656663 9529313326 14293969989 15760018193 28587939978 31520036386 47280054579 94560109158 204880236509 409760473018 614640709527 1229281419054