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423030023420 = 225131389415069
BaseRepresentation
bin1100010011111101000…
…11011110010011111100
31111102220200121202222012
412021332203132103330
523412331141222140
6522200505310352
742364035604304
oct6117643362374
91442820552865
10423030023420
11153451468904
1269b9ba953b8
1330b789b0034
1416690a68604
15b00d689265
hex627e8de4fc

423030023420 has 48 divisors (see below), whose sum is σ = 897447751200. Its totient is φ = 167488239360.

The previous prime is 423030023411. The next prime is 423030023443. The reversal of 423030023420 is 24320030324.

It is a congruent number.

It is an unprimeable number.

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, 811646 + ... + 1226714.

It is an arithmetic number, because the mean of its divisors is an integer number (18696828150).

Almost surely, 2423030023420 is an apocalyptic number.

It is an amenable number.

423030023420 is an abundant number, since it is smaller than the sum of its proper divisors (474417727780).

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

423030023420 is a wasteful number, since it uses less digits than its factorization.

423030023420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415598 (or 415596 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 423030023420 its reverse (24320030324), we get a palindrome (447350053744).

The spelling of 423030023420 in words is "four hundred twenty-three billion, thirty million, twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 131 262 389 524 655 778 1310 1556 1945 2620 3890 7780 50959 101918 203836 254795 415069 509590 830138 1019180 1660276 2075345 4150690 8301380 54374039 108748078 161461841 217496156 271870195 322923682 543740390 645847364 807309205 1087480780 1614618410 3229236820 21151501171 42303002342 84606004684 105757505855 211515011710 423030023420