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1225164050 = 252114154331
BaseRepresentation
bin100100100000110…
…1000010100010010
310011101100210010022
41021001220110102
510002120222200
6321323303442
742234502565
oct11101502422
93141323108
101225164050
11579633980
122a237ab82
13166a95256
14b8a004dc
157285b885
hex49068512

1225164050 has 48 divisors (see below), whose sum is σ = 2546649504. Its totient is φ = 434640000.

The previous prime is 1225164049. The next prime is 1225164067. The reversal of 1225164050 is 504615221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4616 + ... + 49715.

It is an arithmetic number, because the mean of its divisors is an integer number (53055198).

Almost surely, 21225164050 is an apocalyptic number.

1225164050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225164050 is an abundant number, since it is smaller than the sum of its proper divisors (1321485454).

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

1225164050 is a wasteful number, since it uses less digits than its factorization.

1225164050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54395 (or 54390 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1225164050 is about 35002.3434929720. The cubic root of 1225164050 is about 1070.0352420919.

Adding to 1225164050 its reverse (504615221), we get a palindrome (1729779271).

The spelling of 1225164050 in words is "one billion, two hundred twenty-five million, one hundred sixty-four thousand, fifty".

Divisors: 1 2 5 10 11 22 25 41 50 55 82 110 205 275 410 451 550 902 1025 2050 2255 4510 11275 22550 54331 108662 271655 543310 597641 1195282 1358275 2227571 2716550 2988205 4455142 5976410 11137855 14941025 22275710 24503281 29882050 49006562 55689275 111378550 122516405 245032810 612582025 1225164050