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1955875616 = 2561121113
BaseRepresentation
bin111010010010100…
…0100101100100000
312001022022202221122
41310211010230200
513001201004431
6522025111412
766316445162
oct16445045440
95038282848
101955875616
1191404a332
12467028568
13252298466
14147a90932
15b6a98a7b
hex74944b20

1955875616 has 12 divisors (see below), whose sum is σ = 3850630182. Its totient is φ = 977937792.

The previous prime is 1955875613. The next prime is 1955875639. The reversal of 1955875616 is 6165785591.

It can be written as a sum of positive squares in only one way, i.e., 1909690000 + 46185616 = 43700^2 + 6796^2 .

It is not an unprimeable number, because it can be changed into a prime (1955875613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30560525 + ... + 30560588.

Almost surely, 21955875616 is an apocalyptic number.

1955875616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1955875616 is a deficient number, since it is larger than the sum of its proper divisors (1894754566).

1955875616 is an equidigital number, since it uses as much as digits as its factorization.

1955875616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61121123 (or 61121115 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 53.

The square root of 1955875616 is about 44225.2825429075. The cubic root of 1955875616 is about 1250.5865228297.

The spelling of 1955875616 in words is "one billion, nine hundred fifty-five million, eight hundred seventy-five thousand, six hundred sixteen".

Divisors: 1 2 4 8 16 32 61121113 122242226 244484452 488968904 977937808 1955875616