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55154960 = 245798491
BaseRepresentation
bin1101001001100…
…1100100010000
310211210011101022
43102121210100
5103104424320
65250055012
71236544430
oct322314420
9124704338
1055154960
1129151813
121657a468
13b571893
14747a2c0
154c97325
hex3499910

55154960 has 40 divisors (see below), whose sum is σ = 146556096. Its totient is φ = 18910080.

The previous prime is 55154959. The next prime is 55154971. The reversal of 55154960 is 6945155.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×551549602 = 6084139225203200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 55154960.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48686 + ... + 49805.

Almost surely, 255154960 is an apocalyptic number.

It is an amenable number.

55154960 is an abundant number, since it is smaller than the sum of its proper divisors (91401136).

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

55154960 is a wasteful number, since it uses less digits than its factorization.

55154960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98511 (or 98505 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 55154960 is about 7426.6385397433. The cubic root of 55154960 is about 380.6520660342.

The spelling of 55154960 in words is "fifty-five million, one hundred fifty-four thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 98491 196982 393964 492455 689437 787928 984910 1378874 1575856 1969820 2757748 3447185 3939640 5515496 6894370 7879280 11030992 13788740 27577480 55154960