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1772230630 = 253113741729
BaseRepresentation
bin110100110100010…
…0001011111100110
311120111202122101111
41221220201133212
512112142340010
6451505015234
761626466102
oct15150413746
94514678344
101772230630
1182a418115
1241562451a
132232194a1
1412b528902
15a58c058a
hex69a217e6

1772230630 has 32 divisors (see below), whose sum is σ = 3317034240. Its totient is φ = 681000960.

The previous prime is 1772230627. The next prime is 1772230651. The reversal of 1772230630 is 360322771.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1772230592 and 1772230601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21606 + ... + 63334.

It is an arithmetic number, because the mean of its divisors is an integer number (103657320).

Almost surely, 21772230630 is an apocalyptic number.

1772230630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1772230630 is a deficient number, since it is larger than the sum of its proper divisors (1544803610).

1772230630 is a wasteful number, since it uses less digits than its factorization.

1772230630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41904.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 1772230630 is about 42097.8696610648. The cubic root of 1772230630 is about 1210.1524362286.

The spelling of 1772230630 in words is "one billion, seven hundred seventy-two million, two hundred thirty thousand, six hundred thirty".

Divisors: 1 2 5 10 31 62 137 155 274 310 685 1370 4247 8494 21235 41729 42470 83458 208645 417290 1293599 2587198 5716873 6467995 11433746 12935990 28584365 57168730 177223063 354446126 886115315 1772230630