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45554153440 = 255421676279
BaseRepresentation
bin101010011011001111…
…010011011111100000
311100120202011202200011
4222123033103133200
51221243330402230
632532143334304
73201605625655
oct523317233740
9140522152604
1045554153440
111835714a7a4
1289b3bb1394
1343ac976ca3
1422c20bdc2c
1512b9401e2a
hexa9b3d37e0

45554153440 has 48 divisors (see below), whose sum is σ = 107877480480. Its totient is φ = 18178352640.

The previous prime is 45554153423. The next prime is 45554153443. The reversal of 45554153440 is 4435145554.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 45554153393 and 45554153402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45554153443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270780 + ... + 405499.

It is an arithmetic number, because the mean of its divisors is an integer number (2247447510).

Almost surely, 245554153440 is an apocalyptic number.

45554153440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45554153440 is an abundant number, since it is smaller than the sum of its proper divisors (62323327040).

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

45554153440 is a wasteful number, since it uses less digits than its factorization.

45554153440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676715 (or 676707 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 45554153440 its reverse (4435145554), we get a palindrome (49989298994).

The spelling of 45554153440 in words is "forty-five billion, five hundred fifty-four million, one hundred fifty-three thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 421 842 1684 2105 3368 4210 6736 8420 13472 16840 33680 67360 676279 1352558 2705116 3381395 5410232 6762790 10820464 13525580 21640928 27051160 54102320 108204640 284713459 569426918 1138853836 1423567295 2277707672 2847134590 4555415344 5694269180 9110830688 11388538360 22777076720 45554153440